609tl ((ULEXITE pseudomorph after BORAX)), $5 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kerns County, California, 3.5 x 3 x 1.5 cm, Miniature | |
Here is a classic Boron pseudomorph. A single terminated crystal of Borax now pseudomorphed to opaque white Ulexite. ex Jim Minette collection. |