Beryllium (commodity) from Hummingbird claims, Virgin Peak (Bunkerville Mountain), Virgin Mountains, Mohave County, Arizona, USA
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Olson, Jerry C. & Hinrichs, E Neal. "Beryl-bearing Pegmatites in the Ruby Mountains and Other Areas in Nevada and Northwestern Arizona- Contributions to Economic Geology", United States Department of the Interior, Geological Survey Bulletin 1082-D, 1960. |