09iddbrs ((COLEMANITE, ULEXITE)), $30 MINIMUM BID, Boron Open Pit, Boron, Kern County, California, 15 x 12 x 7 cm, Cabinet | |
Here is a extra large Colemanite specimen from Boron. The chisel shaped Colemanite crystals are intergrown with acicular long needles of Ulexite. ex Jim Minette colllection. |