A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Barite medallions from Marmarth, North Dakota, USA |
|---|---|
| Description | Barite (BaSO4)is quite soluble in water, and so can precipitate in many different ways. Sometimes bladed or tabular crystals form a concentric pattern of increasingly larger crystals outwards, resulting in medallions such as the ones shown. The largest of the samples shown is about 4 cm across. |
| Location | USA ▹ North Dakota ▹ Slope. Near Marmarth. |
| Photographer | Darla Sondrol. 2001-06-04. |
| Collection | University of North Dakota Mineralogy Collection #887. |
| Key words | barite, North Dakota |
| Tech details | 436 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 576 |
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