| 609tl ((THENARDITE pseudomorph after MIRABILITE)), $10 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kerns County, California, 3 x 2.2 x 2 cm, Thumbnail | |
 | An uncommon and rare occurrance that was collected by Jim Minette in the settling ponds west of the Open Pit Mine in Boron. This is a hydrous sodium sulfate. The delicate crystals typically are sharp and can be hoppered but are very lightweight almost like styrofoam. There are 7 photos on mindat.org under Thenardite, Boron. This undamaged and terminated specimen was coated to preserve it. Thumbnail sized specimen for the TN collections, ex Jim Minette collection. |
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