9iddb.is ((COLEMANITE on CALCITE)), $5 MINIMUM BID, Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 2.5 x 2.5 x 1.5 cm, Thumbnail | |
Attractive thumbnail with sharp translucent to transparent terminated lustrous Colemanite crystals. The base of the Colemanite filled with botryoidal yellow Calcite which is also fluorescent. ex Jim Minette collection. |