| Title | Gypsum (selenite), CaSO4•2H2O |
| Description | Gypsum has many different appearances. Most commonly it is massive and opaque. Clear samples, like this one are called selenite. This specimen is 8 cm across. |
| Photographer | Darla Sondrol. 2001-06-05. |
| Collection | University of North Dakota Mineralogy Collection #797. |
| Key words | gypsum |
| Tech details | 1016 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 620 |
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