Gypsum (double “ram’s horn”), 16.9cm, from the Terlingua District, Presidio County, Texas. Acquired at the 2016 Munich Mineral Show. Exhibited at The Perot Museum of Nature and Science. Photo by László Kupi.
A collector's guide to Terlingua, USA: its geology, mining history and notable minerals, illustrated with the 22 specimens documented from this locality on EarthWonders.
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