A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Gabbro, Duluth, Minnesota |
|---|---|
| Description | A medium grained dark gray intrusive igneous rock, consisting of well twinned palgioclase and brownish olivine. Minor pyroxene and small grains of magnetite are also present. This sample is 8.5 cm across. |
| Chronostratigraphy | Precambrian |
| Lithostratigraphy | Duluth Gabbro |
| Location | USA ▹ Minnesota ▹ St. Louis. Near Duluth. |
| Photographer | Mike Davis. 2001-02-22. |
| Collection | Ward’s Collection of Classic North American Rocks #30. |
| Key words | gabbro, Minnesota |
| Tech details | 1.01 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 134 |
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