622 ts ((COLEMANITE)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 6 x 5.5 x 3.5 cm, Cabinet, | |
Here is a Colemanite with large spear shaped crystals. There is some chipping on edges and terminations as seen in the photos. ex Jim Minette collection. |