A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Anthracite coal |
|---|---|
| Description | Coal forms by compression of swamp vegetation. The longer and deeper that coal is buried, the higher grade it becomes. Anthracite is the highest grade. This means it contains less water, is harder, and burns hotter than lower grade bituminous coal and lignite. So, it is prized a a fuel in industrial applications. This sample is 10 cm across. |
| Photographer | Darla Sondrol. 2001-06-26. |
| Collection | University of North Dakota Mineralogy Collection #2178. |
| Key words | anthracite, coal |
| Tech details | 463 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 897 |
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