Copper roof on the Minneapolis City Hall Alchemical symbol for copperAncient Copper ingot from Zakros, Crete is shaped in the form of an animal skin typical for that era.Native copper
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Copper

Copper is a chemical element in the periodic table that has the symbol Cu (L.: Cuprum) and atomic number 29. more...

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It is a ductile metal with excellent electrical conductivity, and finds extensive use as a building material, as an electrical conductor, and as a component of various alloys.

Notable characteristics

Copper is a reddish-colored metal, with a high electrical and thermal conductivity (among pure metals at room temperature, only silver has a higher electrical conductivity). Copper has its characteristic color because it reflects red and orange light and absorbs other frequencies in the visible spectrum, due to its band structure. Contrast this with the optical properties of silver, gold and aluminium.

Copper is insoluble in water (H2O) as well as isopropanol, or isopropyl alcohol.

There are two stable isotopes, 63Cu and 65Cu, along with a couple of dozen radioisotopes. The vast majority of radioisotopes have half lives on the order of minutes or less; the longest lived, 64Cu, has a half life of 12.7 hours, with two decay modes, leading to two separate products.

There are numerous alloys of copper—speculum metal is a copper/tin alloy, brass is a copper/zinc alloy, and bronze is a copper/tin alloy. Monel metal is a copper/nickel alloy, also called cupronickel.

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Antique English Copper Brass Samovar Tea Urn Pitcher Antique English Copper Brass Samovar Tea Urn Pitcher $329.00 Vintage French Sign "Cafe Au Bon Vin & Epicerie" From Paris Flea Market Rare!Vintage French Sign "Cafe Au Bon Vin & Epicerie" From Paris Flea Market Rare!
Turtle Abalonie shell sea Taxco Container with Lid Mop Mexico bronze brass fishTurtle Abalonie shell sea Taxco Container with Lid Mop Mexico bronze brass fish $65.00 Antique American Pewter Coffee Pot by Palethorp & Connell PhiladaAntique American Pewter Coffee Pot by Palethorp & Connell Philada $249.99
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17-19th Flanders woodwork Clog ironwork Brass carvings17-19th Flanders woodwork Clog ironwork Brass carvings Softcover Craft Book "Singer Sewing For The Home" Sewing Reference LibrarySoftcover Craft Book "Singer Sewing For The Home" Sewing Reference Library $7.95
Barye Original Bronze Of A Wildebeest Perfect ConditionBarye Original Bronze Of A Wildebeest Perfect Condition $1,850.00 c.1800-1825 brass candlesticks 9 1/2" high w/removable candlecupsc.1800-1825 brass candlesticks 9 1/2" high w/removable candlecups $95.00
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Vint. Artisan Handmade Medieval Armored Knight Statue Vint. Artisan Handmade Medieval Armored Knight Statue $29.99 Bronze Giraffe Sculpture - African Safari WildlifeBronze Giraffe Sculpture - African Safari Wildlife
Antique 18th Century Dutch 10" Brass Bowl Basin (no pedestal)Antique 18th Century Dutch 10" Brass Bowl Basin (no pedestal) $75.00 Precious Vienna Bronze Figurine Horses, c. 1910Precious Vienna Bronze Figurine Horses, c. 1910
Brass by Blake Brass Silent Butler Wooden Handle 1930'sBrass by Blake Brass Silent Butler Wooden Handle 1930's $47.99 c.1820's brass candlesticks with Push-Up Ejectors 6 1/2" highc.1820's brass candlesticks with Push-Up Ejectors 6 1/2" high $75.00
Unusual Hammered Cast Iron (?) Metal Plaque "1869" Address? Unusual Hammered Cast Iron (?) Metal Plaque "1869" Address? $10.00 Softcover Craft Book "Singer Sewing For The Home"Softcover Craft Book "Singer Sewing For The Home" $7.95
Tin Wall HangingTin Wall Hanging Bronze Statue Nude FeMale Bacchus Wine God Art Collector Hand Made Sculpture ArtBronze Statue Nude FeMale Bacchus Wine God Art Collector Hand Made Sculpture Art
Bronze ewers Cherub decoration French victorian periodBronze ewers Cherub decoration French victorian period $2,200.00 Young Roman Emperor Julius Cesar Bronze Sculpture Statue Art Deco Home Decor Nr Young Roman Emperor Julius Cesar Bronze Sculpture Statue Art Deco Home Decor Nr
Rare Brass Double Hemisphere Counter-Top Bell - 7"Tall - V.G. Cond - Very LoudRare Brass Double Hemisphere Counter-Top Bell - 7"Tall - V.G. Cond - Very Loud $51.00 c.1830's brass candlesticks with Push-Up Ejectors 8" highc.1830's brass candlesticks with Push-Up Ejectors 8" high $75.00
Antique c.1890's Brass Scissors w/ Sheath Medieval King + Shield 2 Faces on HandAntique c.1890's Brass Scissors w/ Sheath Medieval King + Shield 2 Faces on Hand Vintage German Brass Turtle #BnVintage German Brass Turtle #Bn $29.99
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Antique Ormulo Ornaments #BeAntique Ormulo Ornaments #Be $159.99 Excellent Solid Bronze " Kneeling Nude " By Bressin Signed Very HeavyExcellent Solid Bronze " Kneeling Nude " By Bressin Signed Very Heavy $59.99
c.1800-1840 brass miniature candlesticks called Tapersticks (document sealing)c.1800-1840 brass miniature candlesticks called Tapersticks (document sealing) $45.00 Brass Box With Lid, Fish On Lid. 3.5 Inch Across M-2Brass Box With Lid, Fish On Lid. 3.5 Inch Across M-2 $18.00
Antique 6" Bronze Classical Figurine The Discus ThrowerAntique 6" Bronze Classical Figurine The Discus Thrower $160.00 Large Japanese Samurai Bronze Warrior with SwordsLarge Japanese Samurai Bronze Warrior with Swords
Vintage Copper Teapot Kettle & Copper Floral Decorative Stand and BurnerVintage Copper Teapot Kettle & Copper Floral Decorative Stand and Burner $35.00 Vintage Copper Tea Pot - TagusVintage Copper Tea Pot - Tagus
Antique 4.5" Bronze Figurine Nude Boy W Thorn In FootAntique 4.5" Bronze Figurine Nude Boy W Thorn In Foot $180.00 Lot Of 3 Beautiful Heavy Old Brass Pieces Vase & BowlsLot Of 3 Beautiful Heavy Old Brass Pieces Vase & Bowls $44.10
Cobalt Porcelain Mounted Bronze D'ore CenterpieceCobalt Porcelain Mounted Bronze D'ore Centerpiece Bronze Eagle Sculpture on Marble Base By Max TurnerBronze Eagle Sculpture on Marble Base By Max Turner
Antique Cast Iron Anvil Minature Paper Weight NiceAntique Cast Iron Anvil Minature Paper Weight Nice Antique Vintage Cast Iron Duck Hunting Decoy Sink Box Style Antique Vintage Cast Iron Duck Hunting Decoy Sink Box Style $12.00
Pair of 10 inch Victorian style brass candlesticksPair of 10 inch Victorian style brass candlesticks Antique Victor S'Co. SeQuoia Hospital Heavy Silver Soldered Teapot Pitcher Antique Victor S'Co. SeQuoia Hospital Heavy Silver Soldered Teapot Pitcher $88.00
Gilt Ormolu Candle Stick Russian Orthodox Church PieceGilt Ormolu Candle Stick Russian Orthodox Church Piece $300.00
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Prices current as of last update, 02/05/12 11:29am.
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