Mineral: Calcite
Locality: Carmen Mine (El Carmen Mine), West Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
Dimensions: 5.8 x 6.2 x 10.6 cm

Description: Chocolate-brown scalenohedral calcite crystals to 5.5 cm in length. Small transparent quartz crystals are scattered over the calcites and the tips are coated with microcrystals of purple fluorite.

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