A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Rensselaer Grit (graywacke), Grafton, Rensselaer County, New York |
|---|---|
| Description | This graywacke contains scattered angular grains of quartz and feldspar (plagioclase and orthoclase) in a fine grained matrix of chlorite, sericite, carbonate, quartz, leucoxene, magnetite and pyrite. The sample is 9 cm across. |
| Chronostratigraphy | Upper Devonian |
| Lithostratigraphy | Rensselaer Grit |
| Location | USA ▹ New York ▹ Rensselaer. Near Grafton. |
| Photographer | Mike Davis. 2001-03-22. |
| Collection | Ward’s Collection of Classic North American Rocks #51. |
| Key words | grit, graywacke, Rensselaer, New York |
| Tech details | 829 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 240 |
 | |