![Copper / Copper mining in the United States / Copper mining in Michigan / Chemistry / Matter / Dietary minerals Copper / Copper mining in the United States / Copper mining in Michigan / Chemistry / Matter / Dietary minerals](https://www.pdfsearch.io/img/fe475ba90c11a7f2dac7a5c9a298aad9.jpg) Date: 2011-11-14 13:21:11Copper Copper mining in the United States Copper mining in Michigan Chemistry Matter Dietary minerals | | COPPER.1 By B, S. BUTLER. After the war broke out it was generally believed that the copper industry would suffer seriously from the stopping of export trade to countries that had taken a considerable part of the AmericaAdd to Reading ListSource URL: pubs.usgs.govDownload Document from Source Website File Size: 350,86 KBShare Document on Facebook
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