Copper, Malachite, Cuprite
Black Rock lode, Mount Isa Mines, Mount Isa, City of Mount Isa, Queensland, Australia
4.4 x 2.9 x 2.6 cm. A colorful, brightly coated with malachite and cuprite, copper specimen from this well-known, now extinct, open pit copper mine, that was worked from 1957-1965 (MINDAT). Documented specimens from here are rare. This fine 360-degree arborescent miniature of spinel-twinned copper crystals with tiny sharp tetrahexahedral crystals ...
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