| Title | Sandstone showing some iron staining |
| Description | This sample of sandstone is about 10 cm tall and contains sugary quartz crystals. Some iron staining is present, which highlites individual bedding layers within the sample. |
| Photographer | Darla Sondrol. 2000-11-29. |
| Collection | University of North Dakota Mineralogy Collection. |
| Key words | sandstone, quartz |
| Tech details | 354 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 11 |
 |