| Title | Quartz |
| Description | Quartz, SiO2, is one of the most common minerals on earth. This sample has the form of a double-terminated prism. It is about 5 cm long. |
| Location | USA ▹ Colorado. Near Cripple Creek. |
| Photographer | Shannon Heinle. 2001-04-24. |
| Collection | University of North Dakota Mineralogy Collection #1593. |
| Key words | quartz, silicate, double-terminated |
| Tech details | 117 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 393 |
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