Title | Staurolite quartzite, Big Rock, Petaca, Rio Arriba County, Mexico |
Description | This quartzite contains grains of staurolite up to 10 mm long but they are hard to see because they are only slighlty darker brown than the rock matrix. This sample is 8 cm across. |
Chronostratigraphy | Precambrian |
Lithostratigraphy | Petaca Schist |
Location | Mexico ▹ Rio Arriba. Near Petaca. Big Rock. |
Photographer | Mike Davis. 2001-04-10. |
Collection | Ward’s Collection of Classic North American Rocks #85. |
Key words | staurolite quartzite, Mexico, Petaca Schist, staurolite |
Tech details | 767 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 336 |
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