Ruby Reef Claims (Ruby Reef; Ruby Reef No. 1), Custer District, Custer Co., South Dakota, USA
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Deposit:: USGS PP 247, P. 186-188.
Deposit:: ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS: SOUTH
Commodities (Major) - Mica
Development Status: Past Producer
Host Rock: Mica Schist, Schist, Quartzite
5 entries listed. 2 valid minerals.
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