Cabinet, 9.8 x 7.4 x 4.8 cm
Soda Lake, Carizzo Plains, San Luis Obispo County, California, USA

A very aesthetic, sharp cluster of bipyramidal crystals of thenardite, a rare sodium sulfate, to 4 cm on a side. The display view clearly highlights the main crystal which resembles a spear point. These are generally considered best of species material, and really good ones are seldom seen on the market today.

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