Mineral: Polybasite
Locality: Mina Chispas, Arizpe, Municipio de Arizpe, Sonora, Sonora, Mexico
Dimensions: 5,0 x 5,0 x 7,5 cm

Description: Main crystal size : 5,5 cm Group of well-defined shiny pseudo-hexagonal crystals MIM number 1682 Photographer : Augustin de Valence (Ainu)

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