| 622 ts ((COLEMANITE)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 14 x 8 x 4 cm, Cabinet, | |
 | Here is a large Colemanite specimen. Sawn flat on the backside. That small white cluster about middle is not really there. Its a small thumbnail that was wedged in place and has been removed. Colemanite crystals have some chipping. Large and small Colemanite crystals have a sandy micro coating. ex Jim Minette collection. |
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