9iddbtr ((COLEMANITE)), $25 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 10 x 9 x 6 cm, Cabinet, | |
Here is a mound with protruding terminated Colemanite crysals. In great shape with minimal chipping in two limited areas. ex Jim Minette collection. |