Copper - Quincy Mine, USA - 16,0 x 8,0 x 2,5 cm
Mineral: Copper
Locality: Quincy Mine, Hancock, Houghton County, Michigan, USA
Dimensions: 16,0 x 8,0 x 2,5 cm

Description: Main crystal size: 5,5 cm Sharp-edged tetrahexahedral and dodecahedral crystals, with a coating of black cryptocrystalline tenorite and dark red cuprite on some parts MIM number 1096 Photographer: Augustin de Valence (Aïnu)