| 609tl ((TINCALCONITE pseudomorph after BORAX)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kerns County, California, 2.5 x 2.3 x 1 cm, Thumbnail | |
 | Here is a well known pseudo from Boron. This undamaged specimen has the rarer and uncommon chisel shaped Borax crystals rather than the more common blocky crystals now pseudomorphed to white Tincalconite. Thumbnail sized specimen for the TN collections, ex Jim Minette collection. |
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