A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Pigeonite (clinopyroxene) from Loudon, Virginia, USA |
|---|---|
| Description | Pigeonite is a type of pyroxene intermediate in composition between enstatite and diopside. It is similar in some ways to augite but contains less calcium and has a different atomic arrangement. Its general formula can be written (Mg,Fe,Ca)2Si2O6. Pigeonite forms at high temperature and many samples change into augite and/or orthopyroxene upon cooling. This specimen is about 5 cm across. |
| Location | USA ▹ Virginia ▹ Loudon |
| Photographer | Nessa Eull. 2001-04-24. |
| Collection | University of North Dakota Mineralogy Collection #3018. |
| Key words | Mineral 3018 in the UND Collection |
| Tech details | 995 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 405 |
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