| 622 ts ((CALCITE on COLEMANITE)), $15 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 5 x 3.5 x 3 cm, Miniature | |
 | Here is an undamaged specimen of fine colorless chisel shaped Colemanite with spherical light tan Calcite crystals. Backside is completely spherical Calcite crystals. ex Jim Minette collection |
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