9iddbis ((CALCITE on COLEMANITE)), $10 MINIMUM BID, Open Pit Mine, Boron, Kern County, California, 4 x 3 x 2.5 cm, Miniature | |
Terminated crystal clusters of Colemanite with small yellow Calcite crystals which are also usually fluorescent mounted in a 2" plastic miniature box from the world class Borate collection of Jim Minette. |