9iddb.is ((COLEMANITE, minor CALCITE)), Fluorescent, $10 MINIMUM BID, Boron Open Pit Mine, Boron, Kern County, California, 9 x 7.5 x 5 cm, Cabinet | |
Sharp pointed spear like crystals of Colemanite with some minor yellow brown Calcite. Calcite will fluoresce yellow under UVSW light. ex Jim Minette collection. |