A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Augen gneiss, near Grass Lake, St. Lawrence County, New York |
|---|---|
| Description | This gneiss contains augen (“eyes”) of pink coarsely crystalline feldspar with biotite at their cores. Biotite, quartz, and light gray plagioclase are present throughout the sample. This specimen is 10 cm across. |
| Chronostratigraphy | Precambrian |
| Location | USA ▹ New York ▹ St. Lawrence. Near Grass Lake. |
| Photographer | Darla Sondrol. 2001-04-10. |
| Collection | Ward’s Collection of Classic North American Rocks #89. |
| Key words | augen gneiss, Gneiss, New York |
| Tech details | 1.16 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 338 |
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