| 622 ts ((COLEMANITE)), $20 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 9.5 x 6 x 4 cm, Cabinet | |
 | Here is an unusual specimen of Colemanite. The color is light root beer brown with highly lustrous crystals. Also the crystals are a different habit than the spear or chisel shaped crystals. There were only a few of these in one box. Is probably a small and rare occurance. Undamaged. Back is sawn and shaped, ex Jim Minette collection. |
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