A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Enargite with pyrite and quartz |
|---|---|
| Description | Enargite, Cu3AsS4 (copper arsenic sulfide), is a somewhat rare copper mineral. It does not often form well-shaped crystals, but there are several localities that produce some fine enargite clusters. The crystals that form tabular to blocky to prismatic forms are often pseudohexagonal, having six sides, but not six identical sides. Twinning is common for enargite and can form a nice star shaped cyclic twin called a trilling. |
| Location | USA ▹ Montana. Near Butte. |
| Photographer | Darla Sondrol. 2001-07-18. |
| Collection | University of North Dakota Mineralogy Collection #89. |
| Key words | Enargite, Pyrite, Quartz, Montana |
| Tech details | 343 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1252 |
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