| Title | Gypsum pseudomorph after calcite |
| Description | This 10 cm wide gypsum crystal formed in a space once occupied by a calcite crystal, so it has a shape typical of calcite, not gypsum. We call crystals with copy-cat shapes pseudomorphs. |
| Photographer | Darla Sondrol. 2001-06-05. |
| Collection | University of North Dakota Mineralogy Collection #795. |
| Key words | gypsum, pseudomorph |
| Tech details | 920 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 625 |
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