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Gypsum Mariposa Mine, California Hill, Terlingua Mercury District, Brewster County, Texas, USA 5.2 cm tall. Same location. 5.2 cm tall. The Crystal Cavern is lined with low-angle rhombohedral calcite crystals. They crunch underfoot when you walk around in there. These gypsum crystals grow on the ceiling of the cavern and in various areas of the cave. Their growth may be influenced by air currents.... (Author: Ed Huskinson)

Gypsum
Mariposa Mine, California Hill, Terlingua Mercury District, Brewster County, Texas, USA
5.2 cm tall.

Same location. 5.2 cm tall. The Crystal Cavern is lined with low-angle rhombohedral calcite crystals. They crunch underfoot when you walk around in there. These gypsum crystals grow on the ceiling of the cavern and in various areas of the cave. Their growth may be influenced by air currents.... (Author: Ed Huskinson)

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