Thursday, February 9, 2012

Also, what is the importance of this ore for the economy of Arizona?|||Copper ores like bornite, chalcopyrite, malachite, and native copper. Copper mining in Arizona produced $5.54 billion in 2007 and accounted for 60% of the US' copper output. Copper is formed in large stars and when they explode they scatter it. When the Earth coalesced, elemental copper was included with it.|||Sounds like a hw question to me.

火车采集器
  • things to do in miami
  • No comments:

    Post a Comment