Title | Ferrous oolitic (red) limestone |
Description | This is a polished sample of red limestone. The red color is due to the presence of hematite, Fe2O3. The rounded shapes apparent on the polished surface are oolites. The specimen is about 8 cm across. |
Photographer | Twyla Baker. 2001-06-11. |
Collection | University of North Dakota Mineralogy Collection. |
Key words | limestone, oolite |
Tech details | 1010 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 693 |
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