A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Dendrites of pyrolusite on sandstone |
|---|---|
| Description | Pyrolusite, MnO2, is the most important manganese ore mineral. When it grow in crack or on bedding planes it often forms dendritic or arborescent crystal crowths, seen in this photo. This sample is 11 cm across. |
| Photographer | Shannon Heinle. 2001-02-09. |
| Collection | University of North Dakota Mineralogy Collection #1743. |
| Key words | pyrolusite, dendrite, dendritic, manganese |
| Tech details | 732 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 42 |
 | |