9btdbis ((COLEMANITE with CALCITE)), fluorescent, $10 MINIMUM BID, Boron Open Pit Mine, Boron, Kerns County, California, 3 x 2 x 1.5 cm, Thumbnail, | |
a flower of spear like lustrous transparent to translucent Colemanite crystals with yellow sphericules of fluorescent Calcite. ex Jim Minette collection. |