9iddb.ar ((COLMANITE)), $20 MINIMUM BID, Boron Open Pit Mine, Boron, Kern County, California, 15 x 10.5 x 6 cm, Large Cabinet | |
Large Colemanite with a vug filled with sharply pointed lustrous crystals of Colemanite. Back of specimen is a rounded shaped by trimming and not sawing to form a displayable specimen. Colemanite crystals have a yellow brown tint which is on or near the surface since the edge of the specimen shows white crystal interiors. ex Jim Minette collection. |