A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Chalcotrichite and cuprite from Ray, Arizona |
|---|---|
| Description | Cuprite, Cu2O, is a major ore of copper. Chalcotrichite is a fibrous variety of cuprite. The cuprite in this specimen is black, and the chalcotrichite is red; they are best seen by looking at the full size image. The yellowish grunge is a goethite-limonite mixture. Some samples of cuprite shows well-developed cubic crystal forms, and chalcotrichite can develop as needle-like splays. |
| Location | USA ▹ Arizona. Near Ray. |
| Photographer | Darla Sondrol. 2001-02-09. |
| Collection | University of North Dakota Mineralogy Collection. |
| Key words | cuprite, chalcotrichite, copper, ore, Arizona |
| Tech details | 595 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 44 |
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