Plata con Cobre - Mina Quincy, USA - 11,0 x 5,0 x 9,0 cm
Mineral: Plata con Cobre
Localidad: Mina Quincy, Hancock, Condado Houghton, Michigan, USA
Dimensiones: 11,0 x 5,0 x 9,0 cm

Descripción: Main crystal size: 2,7 cm Elongate, sharp-edged, tetrahexahedral twinned crystals on a matrix of oxidized copper MIM number 1071 Photographer: Augustin de Valence (Aïnu)