9iddbtr ((COLEMANITE)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 5.5 x 6 x 3 cm, Miniature | |
Here is a cluster of lustrous transparent crystals Colemanite crystals. Minor chipping in non major areas. ex Jim Minette collection. |