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A Geoscience Digital Image Library

594.jpg
TitleAnhydrite and gypsum from Wyoming, USA
DescriptionThis sample contains both anhydrite (gray-red) and gypsum (white). Gypsum, CaSO4•2H2O, and anhydrite, CaSO4, are closely related: most anhydrite forms by dehydration (dewatering) of gypsum.
LocationUSA ▹ Wyoming
PhotographerDarla Sondrol. 2001-06-05.
CollectionUniversity of North Dakota Mineralogy Collection #840.
Key wordsanhydrite, gypsum, Wyoming
Tech details560 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number594