Mineral: Vivianite on Pyrite
Locality: Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia
Dimensions: 22,5 x 27,0 x 20,0 cm

Description: Main crystal size : 16,0 cm Sheaves of large translucent deep green crystals partly coated with oxides, on a matrix made of micro-crystalline pyrite MIM number 1684 Photographer : Augustin de Valence (Ainu)

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