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Mineralogy, Mineral Chemistry, and Paragenesis of Gold, Silver, and Base-metal Ores of the North Amethyst Vein System, San Juan Mountains, Mineral County, Colorado

N. K. Foley

出版	U.S. Department of the Interior, U.S. Geological Survey, 1993
URL	http://books.google.com.hk/books?id=stm2zgEACAAJ&hl=&source=gbs_api