A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Vivianite from near Salmon, Idaho |
|---|---|
| Description | The black mineral is vivianite. Earthy limonite and minor pyrite are also seen. Vivianite is a hydrated iron phosphate, Fe3(PO4)2·(H2O)8. When fresh it may be sparkly blue or green or clear, but it darkens and loses sparkle when exposed to light. This sample is about 10 cm across. |
| Location | USA ▹ Idaho. Near Salmon. |
| Photographer | Shannon Heinle. 2001-06-18. |
| Collection | University of North Dakota Mineralogy Collection #1008. |
| Key words | vivianite, Idaho |
| Tech details | 640 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 775 |
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