A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Conichalcite (green) |
|---|---|
| Description | Conichalcite, CaCuAsO4(OH) (calcium copper arsenate hydroxide), has a sparkling grass green color that once observed, is hard to mistake for any other mineral. It is often encrusted onto limonitic rocks that have a red to yellow color and the two produce a very colorful specimen. Conichalcite forms in the oxidation zone of copper ore bodies. Oxygen rich ground water that might react with copper sulfide and/or copper oxide minerals produce a wonderful assortment of attractive and colorful minerals in a zone called the oxidation zone. |
| Location | USA ▹ Utah. Near Tintic. |
| Photographer | Nessa Eull. 2001-11-26. |
| Collection | University of North Dakota Mineralogy Collection #1054. |
| Key words | Conichalcite, Utah |
| Tech details | 321 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1840 |
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