| Title | Calcite from the Black Hills, South Dakota, USA |
| Description | Calcite crystals may have many different habits, but all have the characteristic rhombohedral cleavage shown here. This specimen is about 9 cm across. |
| Location | USA ▹ South Dakota. Near Rapid City. |
| Photographer | Dexter Perkins. 2001-06-11. |
| Collection | University of North Dakota Mineralogy Collection #645. |
| Key words | calcite, cleavage, Black Hills, South Dakota |
| Tech details | 632 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 688 |
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