11iddbir ((UNKNOWN BLACK MINERAL on MUD)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 8 x 6 x 3 cm, Cabinet | |
Here is an unknown specimen from the Speckels collection purchased by Jim Minette, ex Jim Minette collection, ex Milton L Speckels collection |