A pink crystalline hedgehog of Manganese-bearing Calcite crystals from Bulgaria! This unusual variety of Calcite receives its color from a special chemical substitution. While many minerals have colors that are altered by inclusions of other elements, the Mangano-calcite or Manganoan calcite actually has manganese substituting for calcium in the calcite structure (Ca,Mn)(CO3). The manganese present in the Manganocalcite creates a characteristic pink color in the Calcite.
What makes this piece particularly unique is that the dog-tooth shaped Calcite crystals are rare from the Krushev Dol Mine where this specimen was found. Tiny Pyrite crystals can also be found sprinkled throughout the specimen.
Comes pre-mounted on a clear acrylic display stand.
Approx. 2.5" W x 2.25" H x 1.5" Deep
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