Tan sprays associated with
arsenopyrite crystals to 1 cm
Origin: Lincoln Co., Montana, U.S.A.
Sample size: 7 x 4 x 4 cm with sprays to 7 mm
Origin: Collingwood district, South Island, New
Zealand
Ex. Polak collection
Sample size: 6 x 4 x 2.5 cm
Origin: Homestake mine, Lawrence Co., South
Dakota, United States
Ex. Kidwell collection
Sample size: 6 x 5 x 3 cm
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