| 622 ts ((COLEMANITE on CALCITE)), $15 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 4.5 x 4 x 2.5 cm, Miniature | |
 | Here is a mound of botryoidal yellow brown Calcite topped with sharp spear like crystals of colorless Colemanite. Pointed crystals stick out everywhere, In great shape with minor chipping lower front. Tips and protruding crystals look undamaged. ex Jim Minette collection |
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