622 ts ((COLEMANITE)), $5 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 4 x 3 x 2 cm, Miniature | |
Here is a yellow Colemanite with chisel like crystals. The color may be from Orpiment inclusions but I'm an not sure. ex Jim Minette collection. |