Calcite

Unknown Owner

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A very attractive specimen of calcite twins formed by the contact of two rhombohedrons. The amber, Christmas tree-like crystals are water-clear and have an intense, gemmy luster. Two small lots of crystals were recovered in 2001 and 2004 from a now extinct basalt quarry in Madagascar. Complete-all-around. These are a unique style of twinned calcite crystals. Ex. Tarnowski Collection.