Prospect hole at Red Mountain magnesite mine. Alameda County, California. 1925.
Dates
Date Taken
1925-11-18
Summary
Prospect hole at Red Mountain magnesite mine 38 miles east of Livermore, showing magnesite (white) and country rock (dark). California. November 18, 1925.
Summary
Prospect hole at Red Mountain magnesite mine 38 miles east of Livermore, showing magnesite (white) and country rock (dark). California. November 18, 1925.
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