Product Description
For sale is a boron mineral from California. Featuring colorless to faint grey, translucent to transparent group of bladed colemanite crystals. Fine luster, undamaged specimen of this evaporate mineral. Very few colmanites have the stand alone, presentation that this specimen displays. We chose this single example, from a selection we were offered about 10 years ago. Compare.
U.S. BORAX OPEN PIT, BORON, KERN CO. CALIFORNIA, USA.
66 x 33 x 19mm
