Title | Gabbro, Duluth, Minnesota |
Description | This gabbro, an intrusive igenous rock from Duluth, Minnesota, is mostly composed of labradorite. Augite is found between plagioclase grains, and also as mantles on altered brownish olivine. This is 9 cm across. |
Location | USA ▹ Minnesota. Near Duluth. |
Photographer | Darla Sondrol. 2001-02-15. |
Collection | Ward’s Collection of Classic North American Rocks #30. |
Key words | gabbro, Minnesota |
Tech details | 1.12 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 94 |
|