3.6" Pink Manganoan Calcite Formation - Highly Fluorescent!

Pink Manganoan Calcite Formation - Highly Fluorescent! #193380

This is a 3.6" long formation of manganoan (manganese-bearing) calcite that was collected from the Shizhuyuan Mine in Hunan, China. It features a mixture of scalenohedral and flattened-rhombohedral crystal structure. The faint pink coloration of the calcite can be attributed to manganese impurities, and under both short and long wave UV, the calcite fluoresces a vibrant orange color.

Manganoan calcite, also known as manganocalcite, is a pink, manganese-rich variety of calcite with a chemical composition of (Ca,Mn)CO3. It crystallizes in a trigonal crystal system and forms rhombohedral or scalenohedral crystals. These crystals tend to display a pink color that ranges anywhere from pinkish-salmon to hot pink. It often displays a bright orangey-pink fluorescence under short-wave UV light.

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