Jet black micro crystals to 2 mm throughout matrix associated with excellent
cuprite.
Black matrix with 1-2 mm crystals associated with excellent
cuprite
crystals
Black botryoidal crusts and spherulitic "fuzzy" tufts with superb, dark red
cubic and modified cubic crystals of
cuprite
to 0.75 mm.
Origin: Campbell shaft, Bisbee, Cochise Co., Arizona, United States
Sample size: 5 x 6 x 2 cm (top), 4 x 3 x 1.5 cm (2nd row), 8 x 4 x 2 cm
(bottom)
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