Mineral: Colemanite on Calcite
Locality: Boron, Kramer District (Kramer Borate District), Kern County, California, USA
Dimensions: 4.6 x 3.6 cm

Description: Colorless bladed colemanite crystals, many doubly-terminated, perched on stalactitic pale tan calcite. Jim Minette's label states this piece was collected from Extension 12 of the Open Pit.

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