A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Shonkinite (variety of syenite) |
|---|---|
| Description | Shonkinite is a dark colored variety of syenite. This sample is dominated by brown biotite and light green augite (pyroxene). K-feldspar, quartz and plagioclase are also present but cannot be seen easily identified in hand specimen. The specimen is 9 cm across. |
| Location | USA ▹ California ▹ San Bernardino |
| Photographer | Nessa Eull. 2001-04-26. |
| Collection | Ward’s University Rock Collection #115. |
| Key words | shonkinite, California, igneous rock, syenite |
| Tech details | 820 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens. |
| GeoDIL number | 418 |
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