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Miargyrite silver ore from the Randsburg district, California
1929
Proceedings of the United States National Museum
Preserved Fulltext
of mica-albite and amphibole schists of pre-Cambrian age. Only two of the numerous silver veins outcropped, and one of these two is too low grade to be worked at a profit. The original discovery was made on the Shaft vein at the only point at which it came to 1 Earl v.
doi:10.5479/si.00963801.74-2766.1
fatcat:6d3oxbfnlnetdf2xjo5lz2blpq