9iddbjmrs ((COLEMANITE)), $25 MINIMUM BID, Boron Open Pit Mine, Kramer Borate deposit, Boron, Kerns County, California, 8 x 7.5 x 6 cm, Cabinet | |
Here is a specimen of chisel shaped terminated Colemanite crystals. Glassy terminated translucent to transparent crystals on both the front and back of the specimen. Sawn on the base and angled on each edge for display. Back side near the base does have a knob of crystals missing. ex Jim Minette collection. |