609tl ((ULEXITE pseudomorph after BORAX)), $5 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kerns County, California, 2.5 x 2 x 1 cm, Thumbnail, | |
Here is a classic Boron pseudomorph. A single terminated crystal of Borax now pseudomorphed to opaque white Ulexite. Thumbnail sized specimen for the TN collections, ex Jim Minette collection. |