9iddbis ((CALCITE on COLEMANITE)), FLUORESCENT, $10 MINIMUM BID, Boron Open Pit Mine, Boron, Kern County, California, 6 x 3.5 x 3 cm, Miniature | |
Here is a cluster of Colemanite crystals to 2.5 cm covered with blobs of golden brown botryoidal Calcite which are fluorescent bright yellowish white. ex Jim Minette, ex Milton Speckels with label. |