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RM1790   Cuprite with calcite

Mashamba West Mine, Kolwezi, Katanga, Congo, Democratic Republic of

Group of very well defined cuprite crystals showing very unusual facets both for the species and for this classic locality for the species. They have very well defined faces of the cube and the octahedron, together with those of the dodecahedron. Under intense light the red transparency is observed, but the surface shows a gray patina, the years have passed away. They are placed on a cavity of brilliant calcite crystals. An interesting rarity.

Size: 7.3 x 5.5 x 4.2 cm.
Main crystal: 9 x 5 mm.
Found in ca. 1980.

Col. Jordi Povill (Olesa de M.) No. 544