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    TEMBAGA (Cu)

    H Home Background Color:Li Be Copper Pictures Page BlackWhiteGray B C N

    NaMg Copper Technical Data Al Si PK Ca Copper Isotope Data Sc Ti V CrMn Fe CoNi Cu Zn Ga Ge ARb Sr Y ZrNbMo Tc RuRhPdAg Cd In Sn SCs Ba LaCePrNdPmSm Eu Gd TbDyHo ErTmYbLuHfTa W Re Os Ir Pt Au Hg Tl Pb B

    FrRa AcThPa UNp Pu AmCmBkCfEs FmMdNo LrRfDb Sg Bh HsMtDsRgUubUutUuqUu

    Copper

    Atomic Weight 63.546Density 8.92 g/cc

    Melting Point 1084.62Boiling Point 2927.C

    Full technical data

    Copper is incredibly useful in industry

    sinks and coins, and in brass and bronthis sample is completely useless; it's shand-hammered ball, pleasant to hold

    Scroll down to see examples of

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    Click here to buy a photographic periodic table pon the images you see here, including a new lentic

    version!

    Larger| Spin| 3D

    Copper "ingot".

    Described as an "ingot" by the seller, this is actually a piecebar cut to length. It was being promoted as being suitable fopurposes, but while the price of copper has gone up a lot, itcommodity you can practically invest in in its physical form

    moving it around would swamp any likely profit.Source:eBay seller dfried18Contributor:Theodore GrayAcquired:30 September, 2008Price: $1.36Size: 4"Purity: 99.9%

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    Shiny copper shot.

    Irregular bb-sized nodules of refined copper. Very pretty.

    Source:eBay seller dfried18Contributor:Theodore GrayAcquired:30 September, 2008Price: $8Size: 0.2"Purity: 99.9%

    Copper research ingot.

    Ingot of probably high-purity copper from an old research lSource:Ethan CurrensContributor:Ethan CurrensAcquired:26 September, 2008

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    Larger| Spin| 3DPrice: AnonymousSize: 2"

    Purity: 99.9%

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    Copper turtle.

    This pretty little copper and glass turtle was picked up in a photographer assistant Nick Mann in Philadelphia.Source:Nick MannContributor:Nick MannAcquired:14 June, 2008Price: DonatedSize: 4"Purity: >95%

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    Interesting melted shape of copper.

    Description supplied by the source:This is a good sample of several possible appearances for cwire-brushed, if memory serves, the bottom is the as-cast suagainst the also-copper crucible, and the side shows the intestructure. I melted this particular piece from 4N5 pure melt

    crucible: It's just a nice looking sample.Source:Ethan CurrensContributor:Ethan CurrensAcquired:21 March, 2008Price: AnonymousSize: 3"Purity: 99.99%

    Copper leaf in bottle.

    This is a little souvenir bottle of copper leaf from a gift shosky resort in Colorado (nice place, by the way). Silver mini

    area, with several towns (Silverthorn, Silverplume, etc) namsure, but given that they are in the same column in the periotherefore share chemical properties, it stands to reason that would be found together in the same mines. The amount ofbottle is microscopic because it, like gold, can be hammerethin leaf form. I have similar bottles listed under gold and sSource: Keystone Resort

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    Larger| Spin| 3DContributor:Theodore GrayAcquired:8 March, 2008

    Price: $8Size: 2"Purity: 95%

    Larger| Spin| 3D

    Copper vacuum gasket.

    This ring is a used vacuum gasket. A gasket is a soft materitwo mating surfaces with the idea that, being soft, it will deany small gaps or irregularities in the surfaces, creating an acommon rubber washer is an example of a gasket, and indeyou see in common use are made of rubber or rubber-like mBut for high-vacuum applications rubber or plastic is compThey may be air-tight according to ordinary, every-day stan

    quite porous by the standards of high vacuum work. Any somatter absorbs gas that comes back out when it's placed undallows oxygen, water vapor, and other gasses to pass througMetal makes a much better gasket material because it reallytight. Copper may not sound very soft, but compared to steegroove in the center of the ring? That's created by a steel edis assembled: By squeezing the joint together so tight that tjoined actually dig into the copper gasket, a completely tighalso means the gasket can be used only once, which is why these: After one use, they are junk.Source: Max CaneContributor: Max CaneAcquired:23 December, 2007Price: DonatedSize: 2.5"Purity: >95%Copper Bermuda pig coin.

    Here in America we are used to finding Canadian pennies achange. They look similar enough that they often pass as thand people used to make fun of them for being worth a gooreal American version. Well that is no more, the Canadian dmore than the pathetic US version, and I suppose it's inevitapeople up there are now laughing at our worthless pennies athey find them in their pockets.But this is not an Canadian penny, so I don't know why I'mCanada. This is something much stranger to have pop up inpenny from Bermuda. With apigon the back! I mean, honecountry puts a pig on the back of any kind of coin, even jusit's a very handsome pig, but still, in my forty some years I the like of it for sheer silliness in coinage. Is Bermuda even

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    Larger| Spin| 3DCoin collector Joshua Holman provided the following clarif

    There is a story behind the pig. When Bermuda was first seEnglish, pigs were the only food on the island. Also the pigoriginal money issued by the settlers (it had pigs on it as wethe penny reflects these things. On the page, you also wondeven a real country?"The answer to that is no. Bermuda is is "overseas territory" Kingdom (i.e., a colony).

    Source: My PocketContributor:Theodore GrayAcquired:20 November, 2007

    Price: $0.01Size: 0.5"Purity: >90%Sample Group:Coins

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

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    Copper scrap.

    My assistantNick Mannhas done a fair bit of photographyIndustries, an industrial metal recycler. They even sent himphotograph their operations there, which is where he foundcopper scrap. My guess is it's the left over bits from which blades have been stamped out, but that's just a guess.Source:Nick MannContributor:Nick MannAcquired:20 November, 2007Price: Donated

    Size: 2"Purity: >99%

    Copper earring.

    My assistantNick Mannfound this pure copper earring at awere at in Austin Texas recently.

    http://www.periodictable.com/Items/029.40/index.htmlhttp://www.periodictable.com/Items/029.40/index.qt.htmlhttp://www.periodictable.com/Items/029.40/index.qt.htmlhttp://www.periodictable.com/Items/029.40/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.39/index.htmlhttp://www.periodictable.com/Items/029.39/index.qt.htmlhttp://www.periodictable.com/Items/029.39/index.qt.htmlhttp://www.periodictable.com/Items/029.39/index.qtvr.htmlhttp://nickmannphotography.com/http://nickmannphotography.com/http://www.mervis.com/http://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://nickmannphotography.com/http://nickmannphotography.com/http://www.periodictable.com/Items/029.38/index.htmlhttp://www.periodictable.com/Items/029.39/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.40/index.htmlhttp://www.periodictable.com/Items/029.40/index.qt.htmlhttp://www.periodictable.com/Items/029.40/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.39/index.htmlhttp://www.periodictable.com/Items/029.39/index.qt.htmlhttp://www.periodictable.com/Items/029.39/index.qtvr.htmlhttp://nickmannphotography.com/http://www.mervis.com/http://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://nickmannphotography.com/
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    Larger| Spin| 3DSource:Nick MannContributor:Nick Mann

    Acquired:20 November, 2007Price: DonatedSize: 1"Purity: >99%

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    Copper-plated video iPod Nano.

    This sample is the result ofan article I wrote for the DecemPopular Science Magazine, for which I write a monthly colof those links to find the article, or if it's between NovembeDecember 10th, 2007 when you're reading this, head out tostand and buy a copy of the magazine.Basically the idea was to find a creative way to deal with th

    shiny back side of Apple's otherwise flawless iPod line. Thperfectly shiny that they are ruined the instant you touch thfingerprints and scratches appearing within seconds of purcwas to sandpaper the back into a pleasing brushed finish, thApple logo I'd sanded of with an electro-plated copper perithe article to see how this was done.Source:Theodore GrayContributor:Theodore GrayAcquired:9 November, 2007Price: $200Size: 2.8"Purity: >95%

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    Vibrating wire sensor.

    My grandfather, Armin Wirth, made his fortune inventing wmachines to weigh everything from ladles full of molten stepowdered sugar. But his enduring contribution to the technwas the invention of the vibrating wire sensor.

    The idea is quite simple: A wire is stretched between two pvibrate by an alternating current running through it (magnehave been removed in this photo so you can see the wire). Atuned a guitar knows, the resonant frequency of a stretched how tightly it is stretched. In other words, the frequency is the force stretching the wire, and therein lies a sensor.

    The Wirth-Gallo company first started building sensors basdecades ago, but pictured here is a modern incarnation, a coinexpensive aluminum unit. You can see the wire stretchednear the top of the unit. It's held on either side by a pair of ssqueezed together by conical steel pins pressed into the opp

    http://www.periodictable.com/Items/029.38/index.htmlhttp://www.periodictable.com/Items/029.38/index.qt.htmlhttp://www.periodictable.com/Items/029.38/index.qt.htmlhttp://www.periodictable.com/Items/029.38/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://www.periodictable.com/Items/029.37/index.htmlhttp://www.periodictable.com/Items/029.37/index.qt.htmlhttp://www.periodictable.com/Items/029.37/index.qt.htmlhttp://www.periodictable.com/Items/029.37/index.qtvr.htmlhttp://www.popsci.com/popsci/how20/f6ed4ae090956110vgnvcm1000004eecbccdrcrd.htmlhttp://popsci.com/graymatterhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-09/index.htmlhttp://www.periodictable.com/Items/029.36/index.htmlhttp://www.periodictable.com/Items/029.36/index.qt.htmlhttp://www.periodictable.com/Items/029.36/index.qt.htmlhttp://www.periodictable.com/Items/029.36/index.qtvr.htmlhttp://www.periodictable.com/Items/029.36/index.htmlhttp://www.periodictable.com/Items/029.37/index.htmlhttp://www.periodictable.com/Items/029.38/index.htmlhttp://www.periodictable.com/Items/029.38/index.qt.htmlhttp://www.periodictable.com/Items/029.38/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Source-nickmann/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-20/index.htmlhttp://www.periodictable.com/Items/029.37/index.htmlhttp://www.periodictable.com/Items/029.37/index.qt.htmlhttp://www.periodictable.com/Items/029.37/index.qtvr.htmlhttp://www.popsci.com/popsci/how20/f6ed4ae090956110vgnvcm1000004eecbccdrcrd.htmlhttp://popsci.com/graymatterhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-11-09/index.htmlhttp://www.periodictable.com/Items/029.36/index.htmlhttp://www.periodictable.com/Items/029.36/index.qt.htmlhttp://www.periodictable.com/Items/029.36/index.qtvr.html
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    two blocks on top.

    In use, the force to be measured is applied to a rod inserted the thick bottom section and fastened with set screws to theof the machined aluminum unit. As you can see from the gedevice, if you push up on the center block it will deflect upwtwo sets of horizontal supports to angle outwards (going froparallelogram shape), which in turn will cause the two blocto be pulled farther apart.

    Of course the actual movement is microscopic: The mechantransfer force to the wire, not actually move any significantthe whole complex geometry is designed to minimize the ne

    metal creep and fatigue, that come about from whatever mo

    If you look at the rotation video you can see how much effoisolating the wire holding block from error forces. For examshaped bits of copper connect the ends of the stretched wireboard.

    You may be forgiven for asking, why not just use a Piezo esensor? Piezo sensors are ubiquitous, and they work fine inbut they have limitations, one of which is that it's difficult taccurate under severe operating conditions.

    For example, imagine wanting to be able to weigh the garbeach individual house on a collection route, by putting senswheels of the garbage truck. (This is not only being done innumber of countries it is or soon will be a legal requiremencollection service by priced by the pound. It tends to make more about what they throw away.)

    Sensors on the wheels of a garbage truck have what can onlhard life. One minute they are being run over pot holes at hslamming a truck weighing many tons down hard on the senminute they are being asked to accurately weigh a few pounmeasuring the increases in weight of the multi-ton truck whtipped into it.

    That's the kind of job for which the vibrating wire sensor haadvantage over the more delicate Piezo sensors, which tendcalibration when subject to such rude treatment.

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    My uncle Johannes Wirth, who took over the business fromgave me this sensor when I visited him recently in Zurich (t

    family including three smallish children on a two week vacand Switzerland, but that's a whole other story).

    Source: Johannes WirthContributor: Johannes WirthAcquired:4 September, 2007Price: DonatedSize: 2"Purity: >60%

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    Nice heavy dragon.

    I really like this little brass (i.e. mostly copper) dragon. It c

    the many tourist trap stores in the Chinatown section of SanSource:Gift Shop in ChinatownContributor:Theodore GrayAcquired:1 July, 2007Price: $25Size: 4"Purity: 50%

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    Heat sink.

    Now this is a nice hunk of copper, the base a good 1/4" thiccopper fins coming up from it. Normally there is a fan mouthe fins blowing air through them, but I've removed it so yocopper better. The smooth bottom of the heat sink is pressewith some heat-conductive gel between them: This one is inIntel CPUs.Source: Computer StoreContributor:Theodore Gray

    Acquired:19 June, 2007Price: $35Size: 4"Purity: >99%

    Slab.

    I've long since forgotten where this slab of copper came fro

    http://www.periodictable.com/Elements/Date-2007-09-04/index.htmlhttp://www.periodictable.com/Items/029.35/index.htmlhttp://www.periodictable.com/Items/029.35/index.qt.htmlhttp://www.periodictable.com/Items/029.35/index.qt.htmlhttp://www.periodictable.com/Items/029.35/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-chinatownShop/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-07-01/index.htmlhttp://www.periodictable.com/Items/029.34/index.htmlhttp://www.periodictable.com/Items/029.34/index.qt.htmlhttp://www.periodictable.com/Items/029.34/index.qt.htmlhttp://www.periodictable.com/Items/029.34/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-06-19/index.htmlhttp://www.periodictable.com/Items/029.33/index.htmlhttp://www.periodictable.com/Items/029.34/index.htmlhttp://www.periodictable.com/Items/029.35/index.htmlhttp://www.periodictable.com/Elements/Date-2007-09-04/index.htmlhttp://www.periodictable.com/Items/029.35/index.htmlhttp://www.periodictable.com/Items/029.35/index.qt.htmlhttp://www.periodictable.com/Items/029.35/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-chinatownShop/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-07-01/index.htmlhttp://www.periodictable.com/Items/029.34/index.htmlhttp://www.periodictable.com/Items/029.34/index.qt.htmlhttp://www.periodictable.com/Items/029.34/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-06-19/index.html
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    Larger| Spin| 3Dhunk so I decided it should officially be part of my collectiositting around unused. Now it can sit around unused but at a

    aesthetic level.Source: UnknownContributor:Theodore GrayAcquired:16 June, 2007Price: UnknownSize: 8"Purity: >95%

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    Frangible copper projectile.

    This projectile was described as nearly pure copper with a bit together. "Frangible" means it's designed to fragment intopieces on impact. This serves two purposes: Increasing dam

    (i.e. makes a bigger hole) and limiting the danger of the proaround in an enclosed space and hitting the shooter.Source:Derek McKinleyContributor:Derek McKinleyAcquired:6 April, 2007Price: DonatedSize: 0.5"Purity: >90%

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    Nice copper cup.

    This is a nicely hammered copper cup I got in Japan. It wasrelated object, not surprising since copper is often claimed tbeneficial effects. Which of course doesn't make much sensconsider that it doesn't dissolve in water, and even if it did, with some other metal that would prevent you from gettingit. I think it's supposed to be some kind of energy nonsensecopper bracelets that are said to have similarly non-existentdespite staying entirely outside your body.Source: JapanContributor:Theodore GrayAcquired:12 December, 2006

    Price: $10Size: 6"Purity: >90%Antique Japanese coin.

    This is a huge (2.5" diameter), thick coin I got on a recent trcommemorates something, not sure what since I don't read it in a small coin shop, where I had my interpreter ask the sh

    http://www.periodictable.com/Items/029.33/index.htmlhttp://www.periodictable.com/Items/029.33/index.qt.htmlhttp://www.periodictable.com/Items/029.33/index.qt.htmlhttp://www.periodictable.com/Items/029.33/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-06-16/index.htmlhttp://www.periodictable.com/Items/029.32/index.htmlhttp://www.periodictable.com/Items/029.32/index.qt.htmlhttp://www.periodictable.com/Items/029.32/index.qt.htmlhttp://www.periodictable.com/Items/029.32/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-McKinley/index.htmlhttp://www.periodictable.com/Elements/Source-McKinley/index.htmlhttp://www.periodictable.com/Elements/Source-McKinley/index.htmlhttp://www.periodictable.com/Elements/Date-2007-04-06/index.htmlhttp://www.periodictable.com/Items/029.31/index.htmlhttp://www.periodictable.com/Items/029.31/index.qt.htmlhttp://www.periodictable.com/Items/029.31/index.qt.htmlhttp://www.periodictable.com/Items/029.31/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-12/index.htmlhttp://www.periodictable.com/Items/029.30/index.htmlhttp://www.periodictable.com/Items/029.31/index.htmlhttp://www.periodictable.com/Items/029.32/index.htmlhttp://www.periodictable.com/Items/029.33/index.htmlhttp://www.periodictable.com/Items/029.33/index.qt.htmlhttp://www.periodictable.com/Items/029.33/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2007-06-16/index.htmlhttp://www.periodictable.com/Items/029.32/index.htmlhttp://www.periodictable.com/Items/029.32/index.qt.htmlhttp://www.periodictable.com/Items/029.32/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-McKinley/index.htmlhttp://www.periodictable.com/Elements/Source-McKinley/index.htmlhttp://www.periodictable.com/Elements/Date-2007-04-06/index.htmlhttp://www.periodictable.com/Items/029.31/index.htmlhttp://www.periodictable.com/Items/029.31/index.qt.htmlhttp://www.periodictable.com/Items/029.31/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-12/index.html
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    Larger| Spin| 3Dhad any coins made out of metals that coins are not normallAfter some confusion, he looked around and didn't really fi

    interesting in that category, so I asked instead for coins thatout of pure metals, and were in some other way unusual. I'mcollector, so I have no interest in particular dates or mint mis that coin collectors are interested in. This one isn't even amore of a commemorative medallion, known to coin collec"exonumia", meaning "not real money so we don't want it".I like this one because it's so big and heavy, satisfying to hosomeone who reads Japanese will provide a translation?Source: JapanContributor:Theodore GrayAcquired:12 December, 2006

    Price: $10Size: 2.5"Purity: >90%Sample Group:Coins

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

    Larger| Spin| 3D

    Heat sink.

    Copper has very high thermal conductivity, which means itheat from one place to another, useful if you have too much(i.e. for cooling applications) or you want to add more heat in cooking applications). Hence the popularity of copper inthis one intended to cool computer CPU chips, and in cookiThis cool-looking heat sink was sent to me by a kind readerbut due to my being very busy trying to finish the next versMathematica, I had a huge backlog of samples to photograpuntil January 2007 that my new photography assistantNick

    get to this one. (That is how busy I am: I don't even have timhobby, I have to hire someone to do it for me.) Amazingly,emailed me asking when I was ever going to get around to psample he had kindly contributed, about two hours after Niprocessing it. After a five month delay, that's pretty good tiAnyway, back to the sample. It has a fairly thick slab of copthe side that will be in contact with the chip. (Typically you

    http://www.periodictable.com/Items/029.30/index.htmlhttp://www.periodictable.com/Items/029.30/index.qt.htmlhttp://www.periodictable.com/Items/029.30/index.qt.htmlhttp://www.periodictable.com/Items/029.30/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-12/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.29/index.htmlhttp://www.periodictable.com/Items/029.29/index.qt.htmlhttp://www.periodictable.com/Items/029.29/index.qt.htmlhttp://www.periodictable.com/Items/029.29/index.qtvr.htmlhttp://wolfram.com/http://nickmannphotography.com/http://nickmannphotography.com/http://www.periodictable.com/Items/029.29/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.30/index.htmlhttp://www.periodictable.com/Items/029.30/index.qt.htmlhttp://www.periodictable.com/Items/029.30/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-12/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.29/index.htmlhttp://www.periodictable.com/Items/029.29/index.qt.htmlhttp://www.periodictable.com/Items/029.29/index.qtvr.htmlhttp://wolfram.com/http://nickmannphotography.com/
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    heat-conductive cream to the gap to ensure good contact.) Sthe slab are copper fins that carry the heat up into the stream

    by the small fan in the back.Because the thermal conductivity of metals is typically goepurity, and because this is obviously a good-quality heat sinassume the copper in it is fairly pure.Source: Dudley FoxContributor: Dudley FoxAcquired:20 January, 2007Price: DonatedSize: 5"Purity: >98%

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    Element coin.

    Dave Hamric sells element samples under the name Metallideveloped a line of coins struck out of various common andmetals: They are quite lovely, and very reasonably priced, cdifficulty of creating some of them.Here is the back side of this coin (click either picture to see

    Click the Sample Group link below to see many other coinselements, or click the link to his website above if you want this.Source:Dave HamricContributor:Theodore GrayAcquired:1 December, 2006Price: $5Size: 0.75"Purity: >99%Sample Group:CoinsPenny skeleton.

    http://www.periodictable.com/Elements/Date-2007-01-20/index.htmlhttp://www.periodictable.com/Items/029.28/index.htmlhttp://www.periodictable.com/Items/029.28/index.qt.htmlhttp://www.periodictable.com/Items/029.28/index.qt.htmlhttp://www.periodictable.com/Items/029.28/index.qtvr.htmlhttp://elementsales.com/http://www.periodictable.com/Elements/Source-hamric/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-01/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.27/index.htmlhttp://www.periodictable.com/Items/029.28b/index.htmlhttp://www.periodictable.com/Items/029.28/index.htmlhttp://www.periodictable.com/Elements/Date-2007-01-20/index.htmlhttp://www.periodictable.com/Items/029.28/index.htmlhttp://www.periodictable.com/Items/029.28/index.qt.htmlhttp://www.periodictable.com/Items/029.28/index.qtvr.htmlhttp://elementsales.com/http://www.periodictable.com/Elements/Source-hamric/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2006-12-01/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.html
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    Larger| Spin| 3DThis is a very clever sample. It's a known fact that if you lepenny in strong acid (e.g. muriatic acid) long enough, the z

    dissolved away leaving just the copper cladding. Niels tookfurther by first sanding the penny, removing the copper cladthe raised areas. Then when the zinc was dissolved away, thincredibly finely detailed stencil. It's quite delicate: You canrotation video that it flutters a bit from the breeze created bof the fiber optic illuminators used to light it.

    Now, if only someone could figure out how to dissolve onlleaving the solid zinc core in place!

    Source:Niels Carlson

    Contributor:Niels CarlsonAcquired:20 December, 2005Price: DonatedSize: 0.5"Purity: >98%Sample Group:Coins

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    Chain mail.

    This is hand-made chain mail, meant to be used in jewelry, Lauterwho kindly donated some to my collection, includinfour different elements (click the Sample Group link belowvariations). If you need some chain mail, he'd probably makSource:Mike LauterContributor:Mike LauterAcquired:20 May, 2005Price: DonatedSize: 2"Purity: >98%Sample Group:Chain Mail

    Lead-free fishing weights.

    Environmental concerns have prompted a switch from lead

    fishing sinkers. Click the sample group link below to see wbeen usedSource:WalmartContributor:Theodore GrayAcquired:15 July, 2004Price: $1.50Size: 0.5"

    http://www.periodictable.com/Items/029.27/index.htmlhttp://www.periodictable.com/Items/029.27/index.qt.htmlhttp://www.periodictable.com/Items/029.27/index.qt.htmlhttp://www.periodictable.com/Items/029.27/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-niels/index.htmlhttp://www.periodictable.com/Elements/Source-niels/index.htmlhttp://www.periodictable.com/Elements/Source-niels/index.htmlhttp://www.periodictable.com/Elements/Date-2005-12-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.26/index.htmlhttp://www.periodictable.com/Items/029.26/index.qt.htmlhttp://www.periodictable.com/Items/029.26/index.qt.htmlhttp://www.periodictable.com/Items/029.26/index.qtvr.htmlmailto:[email protected]://www.periodictable.com/Elements/Source-lauter/index.htmlhttp://www.periodictable.com/Elements/Source-lauter/index.htmlhttp://www.periodictable.com/Elements/Source-lauter/index.htmlhttp://www.periodictable.com/Elements/Date-2005-05-20/index.htmlhttp://www.periodictable.com/Elements/ChainMail/index.htmlhttp://www.periodictable.com/Elements/Source-walmart/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-07-15/index.htmlhttp://www.periodictable.com/Items/029.25/index.htmlhttp://www.periodictable.com/Items/029.26/index.htmlhttp://www.periodictable.com/Items/029.27/index.htmlhttp://www.periodictable.com/Items/029.27/index.qt.htmlhttp://www.periodictable.com/Items/029.27/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-niels/index.htmlhttp://www.periodictable.com/Elements/Source-niels/index.htmlhttp://www.periodictable.com/Elements/Date-2005-12-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.26/index.htmlhttp://www.periodictable.com/Items/029.26/index.qt.htmlhttp://www.periodictable.com/Items/029.26/index.qtvr.htmlmailto:[email protected]://www.periodictable.com/Elements/Source-lauter/index.htmlhttp://www.periodictable.com/Elements/Source-lauter/index.htmlhttp://www.periodictable.com/Elements/Date-2005-05-20/index.htmlhttp://www.periodictable.com/Elements/ChainMail/index.htmlhttp://www.periodictable.com/Elements/Source-walmart/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-07-15/index.html
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    LargerPurity: >95%Sample Group:Fishing Weights

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

    Larger| Spin| 3D

    Museum-grade sample.

    In early 2004 Max Whitby and I started selling individual eidentical or similar to the samples we use in the museum di

    These are top-quality samples presented in attractive formsparticular element. They are for sale from Max's website anwhere you will find an ever-changing selection of samples see the current listings).This cast ball is designed to show what the surface of the mwhen hammered: By comparing with similar hammered baan idea of the hardness and working characteristics of the muse approximately the same hammering force on each ball, much deeper hammer marks than zinc, for example.)

    I chose this sample to represent its element in myPhotogra

    Poster. The sample photograph includes text exactly as it apposter, which you are encouraged to buy a copy of.

    Source:Theodore GrayContributor:Theodore GrayAcquired:1 August, 2004Price: See Listing

    http://www.periodictable.com/Items/029.25/index.htmlhttp://www.periodictable.com/Elements/FishingWeights/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.24/index.htmlhttp://www.periodictable.com/Items/029.24/index.qt.htmlhttp://www.periodictable.com/Items/029.24/index.qt.htmlhttp://www.periodictable.com/Items/029.24/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-08-01/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.24/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.25/index.htmlhttp://www.periodictable.com/Elements/FishingWeights/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.24/index.htmlhttp://www.periodictable.com/Items/029.24/index.qt.htmlhttp://www.periodictable.com/Items/029.24/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-08-01/index.html
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    Size: 2"Purity: >99%

    Sample Group:RGB Samples

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    Mini element collection.

    This is a nice little set from the 1960's. The enclosed price la few dollars, and the enclosed mercury sample indicates itenvironmental concerns! Here's a picture of the whole 2-bo

    Source:Blake FerrisContributor:Theodore GrayAcquired:15 July, 2004Price: $61/set

    Size: 1"Purity: >98%

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    Native copper with inclusions.

    This is native (naturally occurring) copper that has been squbunch of broken rocks and pebbles. It certainly gives one anthe forces present in the earth to imagine this copper being rocks like butter through fingers.Source:Max Whitby of RGBContributor:Max Whitby of RGBAcquired:1 February, 2004Price: Donated

    Size: 5"Purity: >90%

    Museum-grade sample.

    In early 2004 Max Whitby and I started selling individual e

    http://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.23/index.htmlhttp://www.periodictable.com/Elements/Source-blakeferris/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-07-15/index.htmlhttp://www.periodictable.com/Items/029.22/index.htmlhttp://www.periodictable.com/Items/029.22/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Date-2004-02-01/index.htmlhttp://www.rgbco.com/html/people.htmhttp://www.periodictable.com/Items/029.21/index.htmlhttp://www.periodictable.com/Items/029.22/index.htmlhttp://www.periodictable.com/Images/JrCollectionSet.JPGhttp://www.periodictable.com/Items/029.23/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.23/index.htmlhttp://www.periodictable.com/Elements/Source-blakeferris/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-07-15/index.htmlhttp://www.periodictable.com/Items/029.22/index.htmlhttp://www.periodictable.com/Items/029.22/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Date-2004-02-01/index.htmlhttp://www.rgbco.com/html/people.htm
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    Larger| 3Didentical or similar to the samples we use in the museum diThese are top-quality samples presented in attractive forms

    particular element. They are for sale from Max's website anwhere you will find an ever-changing selection of samples see the current listings).This half-sphere is a particularly attractive paper-weight stysurface is similar in appearance to that of the ingot shown aSource:Theodore GrayContributor:Theodore GrayAcquired:6 March, 2004Price: See ListingSize: 2"Purity: >99%

    Sample Group:RGB Samples

    Larger| 3D

    Museum-grade sample.

    In early 2004 Max Whitby and I started selling individual eidentical or similar to the samples we use in the museum diThese are top-quality samples presented in attractive formsparticular element. They are for sale from Max's website anwhere you will find an ever-changing selection of samples see the current listings).This ingot is designed to show what the surface of the metahammered: By comparing with similar hammered ingots ofidea of the hardness and working characteristics of the metaapproximately the same hammering force on each ingot, somuch deeper hammer marks than zinc, for example.)Source:Theodore GrayContributor:Theodore GrayAcquired:6 March, 2004Price: See ListingSize: 4"Purity: >99%Sample Group:RGB Samples

    Click here to buy a photographic periodic table pon the images you see here, including a new lentic

    version!

    Museum-grade sample.

    http://www.periodictable.com/Items/029.21/index.htmlhttp://www.periodictable.com/Items/029.21/index.qtvr.htmlhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.20/index.htmlhttp://www.periodictable.com/Items/029.20/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.19/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.20/index.htmlhttp://www.periodictable.com/Items/029.21/index.htmlhttp://www.periodictable.com/Items/029.21/index.qtvr.htmlhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.20/index.htmlhttp://www.periodictable.com/Items/029.20/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Posters/index.html
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    Larger| 3DIn early 2004 Max Whitby and I started selling individual eidentical or similar to the samples we use in the museum di

    These are top-quality samples presented in attractive formsparticular element. They are for sale from Max's website anwhere you will find an ever-changing selection of samples see the current listings).This ingot shows two kinds of surfaces, one where the metawith a graphite mold, and the top that was in contact with thsurface is particularly interesting in that it shows the crystalgive the surface a wrinkled appearance.Source:Theodore GrayContributor:Theodore GrayAcquired:6 March, 2004

    Price: See ListingSize: 4"Purity: >99%Sample Group:RGB Samples

    Larger| 3D

    Electrolytic crystal.

    This is a nice example of an electrochemically grown crysta3D.Source:Frank LiebscherContributor:Frank LiebscherAcquired:28 January, 2004Price: DonatedSize: 3"Purity: 99%

    Hand-polished 2" ball.

    This is a beautiful copper ball, lovingly hand-polished by soobviously loves to polish copper balls!Source:eBay seller dbluett

    Contributor:Theodore GrayAcquired:3 October, 2003Price: $19Size: 2"Purity: >99%

    http://www.periodictable.com/Items/029.19/index.htmlhttp://www.periodictable.com/Items/029.19/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.18/index.htmlhttp://www.periodictable.com/Items/029.18/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-liebscher/index.htmlhttp://www.periodictable.com/Elements/Source-liebscher/index.htmlhttp://www.periodictable.com/Elements/Source-liebscher/index.htmlhttp://www.periodictable.com/Elements/Date-2004-01-28/index.htmlhttp://www.periodictable.com/Elements/Source-dbluett/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-10-03/index.htmlhttp://www.periodictable.com/Items/029.17/index.htmlhttp://www.periodictable.com/Items/029.18/index.htmlhttp://www.periodictable.com/Items/029.19/index.htmlhttp://www.periodictable.com/Items/029.19/index.qtvr.htmlhttp://www.rgbco.com/html/people.htmhttp://periodictabledisplay.com/http://www.element-collection.com/http://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2004-03-06/index.htmlhttp://www.periodictable.com/Elements/RGBSamples/index.htmlhttp://www.periodictable.com/Items/029.18/index.htmlhttp://www.periodictable.com/Items/029.18/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-liebscher/index.htmlhttp://www.periodictable.com/Elements/Source-liebscher/index.htmlhttp://www.periodictable.com/Elements/Date-2004-01-28/index.htmlhttp://www.periodictable.com/Elements/Source-dbluett/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-10-03/index.html
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    Larger

    Link in multi-metal chain.I had been wondering about how hard it would be to make graphite mold with which I could cast chain links around eagiven an existing link, cast a new one interlinked with it. Thquite do-able: Here is the mold I made (using my drill pressand a round-ended router bit):

    In case you ever want to try this, I'll give you an important is the real test, not the second one.

    Using this mold I have cast a chain out of all the metals I caClick the Sample Group link below to see all the links toge

    This chain (counted as one sample) is the 600th sample addcollection.

    Source:Hardware StoreContributor:Theodore GrayAcquired:9 August, 2003Price: $1/poundSize: 3"Purity: >99%Sample Group:Multi-metal ChainChinese coin.

    I got these coins in a gift shop in San Francisco's Chinatowknow if they are genuine chinese coins, but I'm pretty sure tcopper, since there's little else they could be made out of thcheaper.Source:Gift Shop in ChinatownContributor:Theodore GrayAcquired:24 June, 2003

    http://www.periodictable.com/Items/029.17/index.htmlhttp://www.periodictable.com/Items/029.16/index.htmlhttp://www.periodictable.com/Elements/Source-hardware/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-08-09/index.htmlhttp://www.periodictable.com/Elements/ChainGroup/index.htmlhttp://www.periodictable.com/Elements/Source-chinatownShop/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-06-24/index.htmlhttp://www.periodictable.com/Items/029.15/index.htmlhttp://www.periodictable.com/Archive/2003/08/02/Chain/25++.JPGhttp://www.periodictable.com/Archive/2003/08/02/Chain/12++.JPGhttp://www.periodictable.com/Items/029.16/index.htmlhttp://www.periodictable.com/Items/029.17/index.htmlhttp://www.periodictable.com/Items/029.16/index.htmlhttp://www.periodictable.com/Elements/Source-hardware/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-08-09/index.htmlhttp://www.periodictable.com/Elements/ChainGroup/index.htmlhttp://www.periodictable.com/Elements/Source-chinatownShop/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-06-24/index.html
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    LargerPrice: $2Size: 1"

    Purity: >95%Sample Group:Coins

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

    Larger

    Coin shrinking coil, fragmented.

    This is what's left of the copper coil used to magnetically shabove). I got it during the photo shoot for the article I wroteshrinking for my monthly Popular Science column.Source:Bert HickmanContributor:Theodore GrayAcquired:17 July, 2003Price: DonatedSize: 2"Purity: >95%Sample Group:Coins

    Larger

    Copper leaf.

    Gold leaf you've probably heard of, but it's possible to get vseveral different pure metals: Click the Sample Group link ones I have, which represent pretty much the complete list ocommercially available. (Many, many different mixed alloyavailable in leaf form.).

    Leaf like this is so thin it has to be picked up with special Rbrushes (none of that Gray Squirrel crap, mind you) and wh

    onto an object it conforms to the shape of the surface, settlidetails as fine as a fingerprint.

    I bought this leaf from a store in New York when I was visisix-year-old daughter Addie: You canread about our visit hSource:Sepp Leaf ProductsContributor:Theodore Gray

    http://www.periodictable.com/Items/029.15/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.14/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-07-17/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.13/index.htmlhttp://www.periodictable.com/Stories/079.9/index.htmlhttp://www.periodictable.com/Stories/079.9/index.htmlhttp://www.periodictable.com/Elements/Source-seppleaf/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Items/029.13/index.htmlhttp://www.periodictable.com/Items/029.14/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.15/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.14/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-07-17/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.13/index.htmlhttp://www.periodictable.com/Stories/079.9/index.htmlhttp://www.periodictable.com/Elements/Source-seppleaf/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.html
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    Acquired:11 July, 2003Price: $65/500 sheets

    Size: 3.5"Purity: >99%Sample Group:Metal leaf

    Larger

    Shrunken Quarter.

    This is a truly baffling object: I have yet to meet anyone whout how it was created, before I tell them. It's about the sizeis unusual since it is in fact a quarter. The shrinking was dopowerful pulse of magnetic force, with no mechanical contcoin and anything doing the squeezing. This is is so amazinarticle about it for my monthly Popular Science column. If these coins, I suggest buying one (see source link) before th

    in October 2003, as his production capacity is extremely limlink also has detail information and photos of how the coinsSource:Bert HickmanContributor:Bert HickmanAcquired:20 June, 2002Price: DonatedSize: 0.5"Purity: >90%Sample Group:Coins

    Larger

    Mini periodic table table for Popular Science.

    In early 2003 I got an email from an editor at Popular Scienif I'd like to write a monthly column. Of course I said yes, aarticle (in the August, 2003 issue) is a story about lost wax when I was fifteen or so. For the photographs in the article periodic table tables out of various metals: This one is madalso made ones out ofzinc,silver, andbismuth.Source:Marco's Scrap MetalContributor:Theodore GrayAcquired:27 May, 2003Price: $1/pound for scrap zincSize: 3"Purity: >90%

    Electrowinning nodule.

    This nodule is reported to be a result of electrowinning of cwhich electricity is used to reduce copper oxide to copper mextracting the metal from its ore. It's a lot like electroplatingdifference is that in electroplating your goal is to put coppewhile in electrowinning the goal is to get the copper in the f

    http://www.periodictable.com/Elements/Date-2003-07-11/index.htmlhttp://www.periodictable.com/Elements/LeafGroup/index.htmlhttp://www.periodictable.com/Items/029.12/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Date-2002-06-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.11/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/030/index.html#sample9http://www.periodictable.com/Elements/030/index.html#sample9http://www.periodictable.com/Elements/047/index.html#sample13http://www.periodictable.com/Elements/083/index.html#sample11http://www.periodictable.com/Elements/Source-marcos/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-05-27/index.htmlhttp://www.periodictable.com/Items/029.10/index.htmlhttp://www.periodictable.com/Items/029.11/index.htmlhttp://www.periodictable.com/Items/029.12/index.htmlhttp://www.periodictable.com/Elements/Date-2003-07-11/index.htmlhttp://www.periodictable.com/Elements/LeafGroup/index.htmlhttp://www.periodictable.com/Items/029.12/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Source-hickman/index.htmlhttp://www.periodictable.com/Elements/Date-2002-06-20/index.htmlhttp://www.periodictable.com/Elements/CoinsGroup/index.htmlhttp://www.periodictable.com/Items/029.11/index.htmlhttp://www.periodictable.com/PopularScience/index.htmlhttp://www.periodictable.com/Elements/030/index.html#sample9http://www.periodictable.com/Elements/047/index.html#sample13http://www.periodictable.com/Elements/083/index.html#sample11http://www.periodictable.com/Elements/Source-marcos/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-05-27/index.html
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    Larger| 3DThis nodule has almost completely settled the debate about copper nodules are natural or man made. I had thought that

    showed no visible point where an electrode could have beencouldn't be electrolytic in origin. But this one also has no viattachment, and I have no reason to doubt the claim of its oother nodules, whose claim of origin is unconvincing). So aan electrolytic process that does not result in a flat side.Source:eBay seller fullhouse2b3gContributor:Theodore GrayAcquired:27 April, 2003Price: $10Size: 1"Purity: >95%

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

    Larger| 3D

    Electrochemically grown crystal.

    This beautiful man-made crystal was grown by electro-deposolution. Presumably some kind of electrode was dipped in

    copper started growing on it under conditions that encouragends rather than the sides of the dendrites. I believe these soan unintended nuisance created during various electroplatinthey sure are pretty!I have a very similarnickel crystal from the same seller.Source:eBay seller judys-1000s-treasuresContributor:Theodore GrayAcquired:22 February, 2003Price: $11.50Size: 2"Purity: >99%

    Sample from the Everest Set.Up until the early 1990's a company in Russia sold a periodwith element samples. At some point their American distribremaining stock to a man who is now selling them on eBay(except gasses) weigh about 0.25 grams each, and the wholvery nice wooden box with a printed periodic table in the li

    http://www.periodictable.com/Items/029.10/index.htmlhttp://www.periodictable.com/Items/029.10/index.qtvr.htmlhttp://www.periodictable.com/Elements/029/index.html#sample6http://www.periodictable.com/Elements/Source-fullhouse2b3g/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-04-27/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.9/index.htmlhttp://www.periodictable.com/Items/029.9/index.qtvr.htmlhttp://www.periodictable.com/Elements/028/index.html#sample10http://www.periodictable.com/Elements/Source-judys1000streasures/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-02-22/index.htmlhttp://www.periodictable.com/Items/029.8/index.htmlhttp://www.periodictable.com/Items/029.9/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.10/index.htmlhttp://www.periodictable.com/Items/029.10/index.qtvr.htmlhttp://www.periodictable.com/Elements/029/index.html#sample6http://www.periodictable.com/Elements/Source-fullhouse2b3g/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-04-27/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.9/index.htmlhttp://www.periodictable.com/Items/029.9/index.qtvr.htmlhttp://www.periodictable.com/Elements/028/index.html#sample10http://www.periodictable.com/Elements/Source-judys1000streasures/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-02-22/index.html
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    LargerTo learn more about the set you can visit my page about elefor a general description and information about how to buy

    see photographs of all the samples from the set displayed operiodic table layoutorwith bigger pictures in numerical or

    Source:Rob AccursoContributor:Rob AccursoAcquired:7 February, 2003Price: DonatedSize: 0.2"Purity: >99%

    Larger

    Sample from the RGB Set.

    The Red Green and Blue company in England sells a very n

    collection in several versions. Max Whitby, the director of kindly donated a complete set to the periodic table table.

    To learn more about the set you can visit my page about elefor a general description orthe company's website which inphotographs and pricing details. I have two photographs of the set: One taken by me and one from the company. You cof all the samples displayed in a periodic table format:my ppictures. Or you can see both side-by-side with bigger pictuorder.

    The picture on the left was taken by me. Here is the companis some variation between sets, so the pictures sometimes shvariations of the samples):

    Source:Max Whitby of RGB

    http://www.periodictable.com/Items/029.8/index.htmlhttp://www.periodictable.com/HowToGetOne.html#everesthttp://www.periodictable.com/HowToGetOne.html#everesthttp://www.periodictable.com/indexS.everest.html#tabletophttp://www.periodictable.com/indexS.everest.html#tabletophttp://www.periodictable.com/Elements/InEverestSet/index.htmlhttp://www.periodictable.com/Elements/Source-RnJAccurso/index.htmlhttp://www.periodictable.com/Elements/Source-RnJAccurso/index.htmlhttp://www.periodictable.com/Elements/Source-RnJAccurso/index.htmlhttp://www.periodictable.com/Elements/Date-2003-02-07/index.htmlhttp://www.periodictable.com/Items/029.7/index.htmlhttp://www.rgbco.com/html/people.htmhttp://www.rgbco.com/html/people.htmhttp://www.periodictable.com/HowToGetOne.html#rgbhttp://www.periodictable.com/HowToGetOne.html#rgbhttp://www.element-collection.com/http://www.element-collection.com/http://www.periodictable.com/indexS.rgb.html#tabletophttp://www.periodictable.com/indexS.rgb.html#tabletophttp://www.periodictable.com/indexS.rgb2.html#tabletophttp://www.periodictable.com/Elements/InRGBSet/index.htmlhttp://www.periodictable.com/Elements/InRGBSet/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Items/029.7b/index.htmlhttp://www.periodictable.com/Items/029.7/index.htmlhttp://www.periodictable.com/Items/029.8/index.htmlhttp://www.periodictable.com/HowToGetOne.html#everesthttp://www.periodictable.com/indexS.everest.html#tabletophttp://www.periodictable.com/Elements/InEverestSet/index.htmlhttp://www.periodictable.com/Elements/Source-RnJAccurso/index.htmlhttp://www.periodictable.com/Elements/Source-RnJAccurso/index.htmlhttp://www.periodictable.com/Elements/Date-2003-02-07/index.htmlhttp://www.periodictable.com/Items/029.7/index.htmlhttp://www.rgbco.com/html/people.htmhttp://www.periodictable.com/HowToGetOne.html#rgbhttp://www.element-collection.com/http://www.periodictable.com/indexS.rgb.html#tabletophttp://www.periodictable.com/indexS.rgb2.html#tabletophttp://www.periodictable.com/Elements/InRGBSet/index.htmlhttp://www.periodictable.com/Elements/InRGBSet/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.html
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    Contributor:Max Whitby of RGBAcquired:25 January, 2003

    Price: DonatedSize: 0.2"Purity: 99.0%

    Larger| 3D

    Arizona Raspberry Copper Nodules/Nuggets.

    Really strange looking nodules. The distinction between nois that nodules are formed by precipitation or other chemicanuggets are formed by mechanical action in the solid state. that's the distinction implied by this letter from the US Geowhich offered an opinion on these things back in 1978 (clicget a readable version in a separate window):

    A possible history of these rather strange nuggets is told bysupplied by the eBay seller (who has more if you email [email protected]):

    http://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Date-2003-01-25/index.htmlhttp://www.periodictable.com/Items/029.6/index.htmlhttp://www.periodictable.com/Items/029.6/index.qtvr.htmlmailto:[email protected]://www.periodictable.com/Items/029.6a/index.htmlhttp://www.periodictable.com/Items/029.6b/index.htmlhttp://www.periodictable.com/Items/029.6/index.htmlhttp://www.periodictable.com/Elements/Source-whitby/index.htmlhttp://www.periodictable.com/Elements/Date-2003-01-25/index.htmlhttp://www.periodictable.com/Items/029.6/index.htmlhttp://www.periodictable.com/Items/029.6/index.qtvr.htmlmailto:[email protected]
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    The seller supplied a copy of an analysis indicating them tobut not saying what the rest was, other than that it wasn't paor rhodium. I confirmed the analysis by x-ray fluorescence Center for Microanalysis of Materials, University of Illinoisupported by the U.S. Department of Energy under grant DER45439), getting a result of 94.9% copper, 5.1% iron. Thefact that they are slightly magnetic.

    And they certainly are quite curious and pretty, whether theor not, which as you will see is not particularly likely.

    I cut one in half (actually I ground half of it away with a bethis is what it looks like inside:

    http://www.periodictable.com/Items/029.6d/index.html
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    According to the USGS letter, the core is some mixture of cclearly the bulk of it is metallic copper. I made aQuickTim

    the sliced version (warning, it's a high-resolution, 12MB fil

    By way of fact-checking, I looked up the name on the USG(probably on account of the unusual name), got lucky with address I tried. The response was great:Yes, I am the same person although doing very different thimy own business (www.specmin.com) and no longer work

    I definitely do remember those nuggets.

    We never saw anything like them again, to the best of my r

    In subsequent years, I have become a consultant to the mintraveled extensively in South America to different mines ananything like them there either.

    I have sent this out to a few of my copper industry friends ato see if they have

    I will let you know if I get a response

    Phoebe HauffShe's going to get some of the nuggets and show them arouindustry friends and of course I'll report anything that come

    Coincidentally I later got an email on an unrelated subject fperson, Joe Taggart, who currently works at the USGS. It tuPhoebe when she worked there. He didn't see the nodules win 1978, but based on the pictures on my website and Phoebthey looked like they might be pseudomorphs, clusters of cuwhich were then converted into copper metal by the action solution.

    At that point I thought I knew the answer for sure: They weoccurring copper nodules! But that confidence lasted all of not long after the first email, I got another one from Joe saythat can't be right. He'd thought about it some more and askother experts in the field, and they said, no, those copper nodense to be pseudomorphs, they are a by-product of the elecprocess of refining copper from copper ore. In fact, he saidsimilar nodule collected from just such an industrial operati

    http://www.periodictable.com/Samples/029.6b/index.qtvr.htmlhttp://www.periodictable.com/Samples/029.6b/index.qtvr.htmlhttp://www.specmin.com/http://www.periodictable.com/Samples/029.6b/index.qtvr.htmlhttp://www.specmin.com/
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    Well, that settles it, right? Since the natural-origins theory h

    issues, if they have a similar nodule that is known to be artibe pretty good evidence that mine are artificial too.

    I was pretty well convinced that they were artificial at this pconfidence was even shorter-lived. Just a couple of hours laemail giving me permission to quote him on my website, bumentioned that the "similar" nodule they have has aflat sidelectrode was. Well, if my nodules had a flat side, or any viattachment, I would never have had any doubt that they wenature! While the "natural origin" theory has problems, the theory has problems too, like why the cuprite core, and how

    nodule electrolytically without any asymmetry or point of a

    It's not that I can't imagine any way this could be done, it juThe next piece of evidence came in the form of a copper noa sample right here. It looks rather similar to these nodules round, but it has no flat side and it's claimed to be from electhink this pushes the balance of likelihood pretty strongly inan artificial origin for these nodules.

    Personally, I really don't care one way or the other, I just wsure! They are very attractive and interesting objects regardthey are natural or man-made.

    In fact, despite not knowing their origin for sure, I've acquito use for trading. If you have any elements you think I'd likmake a deal. If you want some of these nuggets and you doelements, contact the source listed below because he's got m

    Source:eBay seller copper_nugget_manContributor:Theodore GrayAcquired:10 January, 2003Price: DonatedSize: 0.75"Purity: 95%Michigan Native Copper.

    A Christmas present element: This ball came with the folloMichigan's Keweenaw Peninsula is the most important locafor pure native copper. Mining began in 1845 and continueover 5 million tons of refined copper were recovered from Mmines. In the early 1900's, it led the world in copper produc

    http://www.periodictable.com/Elements/029/index.html#sample10http://www.periodictable.com/Elements/029/index.html#sample10http://www.periodictable.com/Elements/Source-coppernuggetman/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-01-10/index.htmlhttp://www.periodictable.com/Items/029.5/index.htmlhttp://www.periodictable.com/Elements/029/index.html#sample10http://www.periodictable.com/Elements/Source-coppernuggetman/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2003-01-10/index.html
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    Larger| 3DCopper" was the purity standard to which other refined copLong before the mining operations of the past century bega

    Keweenaw, pre-historic peoples mined copper from the minIt looks to me like this ball was melted down, probably fromof native copper. Larger nuggets are much more valuable inand are usually cut and polished, then sold for hundreds of dSource:John GrayContributor:John GrayAcquired:25 December, 2002Price: DonatedSize: 1"Purity: >90%

    Click here to buy a photographic periodic table p

    on the images you see here, including a new lentic

    version!

    Larger

    Spark Plug.

    Lord only knows what else you could make the core of a spbut this one prominently advertises the fact that it's made ofgo with my collection of spark plug elements, which is surp

    extending even to man-made radioactive elements.Here's an interesting article about different elements in sparSource:Farm & FleetContributor:Theodore GrayAcquired:19 November, 2002Price: $2Size: 3"Purity: >95%Sample Group:Spark Plugs

    Native Copper.

    Found on a beach on one of the Apostle Islands in Lake SupSource:Chris CarlsonContributor:Lena CarlsonAcquired:11 July, 2002Price: DonatedSize: 0.6"Purity: >90%

    http://www.periodictable.com/Items/029.5/index.htmlhttp://www.periodictable.com/Items/029.5/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-johngray/index.htmlhttp://www.periodictable.com/Elements/Source-johngray/index.htmlhttp://www.periodictable.com/Elements/Source-johngray/index.htmlhttp://www.periodictable.com/Elements/Date-2002-12-25/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.4/index.htmlhttp://www.babcox.com/editorial/cm/cm120032.htmhttp://www.periodictable.com/Elements/Source-farmandfleet/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2002-11-19/index.htmlhttp://www.periodictable.com/Elements/SparkPlugsGroup/index.htmlhttp://www.periodictable.com/Elements/Source-carlson/index.htmlhttp://www.periodictable.com/Elements/Source-lena/index.htmlhttp://www.periodictable.com/Elements/Source-lena/index.htmlhttp://www.periodictable.com/Elements/Date-2002-07-11/index.htmlhttp://www.periodictable.com/Items/029.3/index.htmlhttp://www.periodictable.com/Items/029.4/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.5/index.htmlhttp://www.periodictable.com/Items/029.5/index.qtvr.htmlhttp://www.periodictable.com/Elements/Source-johngray/index.htmlhttp://www.periodictable.com/Elements/Source-johngray/index.htmlhttp://www.periodictable.com/Elements/Date-2002-12-25/index.htmlhttp://www.periodictable.com/Posters/index.htmlhttp://www.periodictable.com/Items/029.4/index.htmlhttp://www.babcox.com/editorial/cm/cm120032.htmhttp://www.periodictable.com/Elements/Source-farmandfleet/index.htmlhttp://www.periodictable.com/Elements/Source-theodore/index.htmlhttp://www.periodictable.com/Elements/Date-2002-11-19/index.htmlhttp://www.periodictable.com/Elements/SparkPlugsGroup/index.htmlhttp://www.periodictable.com/Elements/Source-carlson/index.htmlhttp://www.periodictable.com/Elements/Source-lena/index.htmlhttp://www.periodictable.com/Elements/Date-2002-07-11/index.html
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    Larger

    Larger| Sound

    Pre-1982 Pennies.Before 1982, US pennies were made of solid copper. After briefly went over a penny per penny, they reconsidered, andcopper plated zinc.Source:AmericaContributor:Theodore GrayAcquired:15 April, 2002Price: $0.01/pennySize: 0.5"Purity: >90%Sample Group:Coins

    Larger| 3D |Sound

    3/0 electrical wire.

    This wire was left over from when I rewired the main servifarm, and installed the backup generator in the early 1990s.It's been m