9iddbtr ((COLEMANITE)), $30 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kerns County, California, 13.5 x 8 x 4 cm, Cabinet, | |
Lustrous spear shaped terminated crystals of Colemanite with smoky edges. Undamaged in great shape. ex Jim Minette collection. |