A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Pumpellyite and glaucophane in a bluschist |
|---|---|
| Description | This fine-grained metamorphic rock is a type of blueschist. It contains mostly glaucophane (bluish) and pumpellyite (light green) but is so fine grained the minerals are hard to distiguish. Glaucophane is a sodic-amphibole, and pumpellyite is a Ca-Al-Mg mineral related to epidote. This sample is approximately 7 cm across. |
| Location | USA ▹ California ▹ Sonoma County |
| Photographer | Shannon Heinle. 2001-05-22. |
| Collection | University of North Dakota Mineralogy Collection #1264. |
| Key words | pumpellyite, metamorphic, glaucophane |
| Tech details | 481 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera. |
| GeoDIL number | 535 |
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