A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Chert breccia enclosed in sphalerite |
|---|---|
| Description | This is a sample of breccia. The angular clasts are made of chert (fine grined SiO2), the matrix around them is sphalerite (ZnS). The chert replaced dolomite in an orignal dolostone prior to brecciation. The sample is 17 cm across. |
| Location | USA ▹ Missouri. Near Joplin. |
| Photographer | Nessa Eull. 2001-06-21. |
| Collection | University of North Dakota Mineralogy Collection #2429. |
| Key words | chert, breccia, zinc, Missouri, sphalerite |
| Tech details | 586 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 836 |
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