Mineral: Calcite
Locality: La Cobriza Mine, Villa de la Paz Municipality, San Luis Potosí, Mexico
Dimensions: 7.6 x 7.3 x 4.5 cm

Description: Yellow scalenohedral calcite crystals with polysynthetic growth on a matrix of galena, sphalerite, and minor pyrite from a relatively unknown mine about 50 miles northeast of Charcas.

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