A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Garnet-sillimanite gneiss, Washington County, New York |
|---|---|
| Description | In hand specimen this rock appears to be mostly quartz. A microscope reveals abundant fine grained garnet and sillimanite. The sillimanite can be seen in the high resolution version of this photo - it forms white needles and blades - but the garnet is ellusive. The rock may be termed a gneiss because it has bands of alternating lighter and darker color, but the banding is only weakly developed. This specimen is 10 cm across. |
| Location | USA ▹ New York ▹ Washington |
| Photographer | Mike Davis. 2001-04-26. |
| Collection | Ward’s University Rock Collection #196. |
| Key words | garnet, sillimanite, gneiss, New York |
| Tech details | 798 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens. |
| GeoDIL number | 434 |
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