622 ts ((COLEMANITE with REALGAR inclustions)), $20 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 9.5 x 5.5 x 4 cm, Cabinet | |
Here is classic Colemanite from Boron. The reddish orange color of the undamaged Colemanite crystals is due to micro inclusions of Realgar. Veins of reddish Realgar can be seen on the specimen matrix edges. ex Jim Minette collection. |