A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Granodiorite, St. Cloud, Minnesota, USA |
|---|---|
| Description | A medium granular intrusive igneous rock. It is composed primarily of plagioclase, pink potassium feldspar (microcline perthite), biotite, hornblende and quartz. This sample is 10 cm across. |
| Chronostratigraphy | Precambrian |
| Location | USA ▹ Minnesota ▹ Stearns. Near St. Cloud. |
| Photographer | Joseph Hartman. 2001-02-06. |
| Collection | Ward’s Collection of Classic North American Rocks #7. |
| Key words | Granodiortie, Minnesota |
| Tech details | 1.23 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 25 |
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