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Columbite-Tantalite from
Tin Mountain Mine, Fourmile, Custer District, Custer Co., South Dakota, USA


Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Rocks & Minerals: 60: 117-118; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).
Mineral and/or Locality
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