622 ts ((COLEMANTITE)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 5 x 3 x 2 cm, Miniature | |
Here is a specimen with two large connected crystals of Colemanite on a matrix with much smaller crystals. ex Milton L Speckels collection with label, ex Jim Minette collection whom purchased the Speckels Borate collection. |