622 ts ((COLEMANITE with CALCITE coating)), $5 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 4 x 3.5 x 1.5 cm, Miniature | |
This specimen has white chisel shaped Colemanite crystals coated with yellow orange Calcite. ex Jim Minette collection. |