Title | Bornite from Oscola Mine, Mississippi |
Description | This specimen of bornite is 9 cm across. Bornite, Cu5FeS4 (copper iron sulfide), is an important copper ore mineral. It rarely forms good crystals; massive samples such as the one shown are typical. Although coppery red to brown on fresh surfaces, bornite readily tarnishes to iridescent purple. It is sometimes called peacock ore because of its color. |
Location | USA ▹ Mississippi. Oscola Mine. |
Photographer | Darla Sondrol. 2001-07-11. |
Collection | University of North Dakota Mineralogy Collection #107. |
Key words | bornite, Mississippi |
Tech details | 850 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 1129 |
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