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Cuprotungstite from
Copper World Mine (Helvetia Mine; Black Horse shaft; Brunswick Mine; Little Dave Mine; Owasco Mine), Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA

Description
Comments:Noted on the 200 level.
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 82.
Data
Mineral Data:Click here to view Cuprotungstite data
Locality Data:Click here to view Copper World Mine (Helvetia Mine; Black Horse shaft; Brunswick Mine; Little Dave Mine; Owasco Mine), Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA
Mineral and/or Locality
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