Title | Muscovite-biotite granite,Merrimack County, New Hampshire |
Description | This is a light-colored medium-grained plutonic igneous rock composed of feldspar (microcline and sodic plagioclase), quartz, muscovite, and biotite. It is about 9 cm across. |
Chronostratigraphy | Late Paleozoic |
Location | USA ▹ New Hampshire ▹ Merrimack. Near Concord. |
Photographer | Dexter Perkins. 2001-01-24. |
Collection | Ward’s Collection of Classic North American Rocks #2. |
Key words | granite, New Hampshire |
Tech details | 936 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 19 |
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