A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Nahcolite, from near Rifle, Colorado |
|---|---|
| Description | Nahcolite, NaHCO3 (sodium bicarbonate; the white material on shale in this photo) is one of those rare minerals that are named for their chemistry. NaHCO3 is also known chemically as “baking soda”. Nahcolite forms large concretionary masses in the oil-shales of the Green River Formation and as an evaporite mineral in non-marine sedimentary deposits. This specimen is 8 cm across. |
| Location | USA ▹ Colorado. Near Riffle. |
| Photographer | Darla Sondrol. 2001-06-19. |
| Collection | University of North Dakota Mineralogy Collection #718. |
| Key words | nahcolite, Colorado |
| Tech details | 1014 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 797 |
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