Copper, Silver, & Gold

In: Science

Submitted By redbec24
Words 874
Pages 4
Copper is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is found in many different places In the world, but the biggest composite of copper is in Chile second to that is in Utha, with other large mines in Arizona, New Mexico and Michigan. Copper can come from a naturally formed free metallic state found in t basaltic lava as a result of volcanic activity. Or Copper can be found in oxidized ores and sulfide ores that must be mined and processed oxidized ores contain primarily copper, and can basically be melted down into copper in a smelting procress. A process in mining copper is called open pit mining in which a big hole is dug in the earth that are sometimes a few thousands of yards wide. huge machinery are used to mine copper such as giant earth movers, rock crushers even blasting with dinomites is used to move large chucks of earth. luckly we are in not gunna run out of copper any thime soon. An estimated 5.8 trillionpounds of copper known worldwide, of which about .07 trillion pounds have been mined throughout history. And of that .07 trillion is still in circulation because coppers recycling rate is higher than that of any other engineering metal. Silver, what is it and where it found? Native silver is the purest kind of silver. Native silver is a metal with nothing else added to it. Most silver is found in an ore combined with a mineral. it can be found in igneous (igneous rock is made when magma comes to the earth surface in the form of lava its is supper heated then cooled) and sedimentary ore like galena, it is formed in veins of rock that have very hot water flowing threw and around them. How and where is it mined? Silver is mined using underground mining Most of the time silver is found in ore. The miners goal might not be to find silver but…...

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