A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Arfvedsonite granite, Washington Pass, Washington |
|---|---|
| Description | Arfvedsonite (black) is an amphibole related to hornblende. Here it is found in a granite with quartz (glassy), perthitic feldspar (white) and biotite (black). This sample is 9 cm across. |
| Location | USA ▹ Washington. Washington Pass. |
| Photographer | Mike Davis. 2001-04-24. |
| Collection | Ward’s Collection of Classic North American Rocks #104. |
| Key words | arfvedsonite, granite, Washington |
| Tech details | 701 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 375 |
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