A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Pyrrhotite with garnet, quartz and biotite, from Thompson, Manitoba |
|---|---|
| Description | The gold/brass colored mineral that dominates this sample is pyrrhotite. The pyrrhotite occupies a vein in a garnet-quartz-biotite rock that split open along the vein. The garnet (red and glassy looking), quartz (white), and biotite (black) can be most clearly seen in the upper left part of the specimen. Pyrrhotite, Fe1-xS, is closely related to pyrite, FeS2, but has a distinctly different atomic arrangement. Additionally, pyrrhotite's color is subdued and often described as being “bronze” but pyrite (fools gold) has a brighter more yellow metallic appearance. The sample shown, from the mining district near Thompson, Manitoba, is about 9 cm across. |
| Location | Canada ▹ Manitoba. Near Thomson. |
| Photographer | Darla Sondrol. 2001-07-09. |
| Collection | University of North Dakota Mineralogy Collection #198. |
| Key words | pyrrhotite, garnet, quartz, biotite, Manitoba, Canada |
| Tech details | 926 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1046 |
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