A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Malachite and cuprite in quartz, from the Old Dominion Mine, Gila County, Arizona |
|---|---|
| Description | The green mineral is malachite, Cu2(CO3)(OH)2. It is a secondary mineral of copper, which means it is forms by alteration of other (primary) copper minerals. Malachite is often associated with other copper minerals; in this sample, the black-brown material is cuprite, Cu2O. High-quality samples of malachite are prized as semi-precious stones, but in this sample the malachite has neither the vivid color, sparkle nor interesting texture that some specimens have. This specimen is 8 cm across. |
| Location | USA ▹ Arizona ▹ Gila. Old Dominion Mine. |
| Photographer | Darla Sondrol. 2001-06-18. |
| Collection | University of North Dakota Mineralogy Collection #1711. |
| Key words | malachite, cuprite, quartz, Arizona |
| Tech details | 1.08 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 765 |
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