622 ts ((BROWN COLEMANITE)), $15 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 15 x 9.5 x 5 cm, Large Cabinet, | |
Here is a large specimen of brown Colemanite from Boron. It is sawn on the back and one side for displaying upright or flat. Undamaged lustrous sparkling crystals cover the specimen. ex Jim Minette collection |