Title | Silver plume aplite |
Description | This is a plain-polarized view of aplite, which is a fine-grained pink granitic rock composed of quartz, glassy feldspar (microcline and sodic plagioclase) and biotite. The quartz and glassy feldspar is in the white areas. |
Chronostratigraphy | Precambrian |
Geologic province | Silver Plume aplite |
Location | USA ▹ Colorado ▹ Boulder. Near Boulder. |
Photographer | Darla Sondrol. 2001-10-25. |
Collection | Ward’s Collection of Classic North American Rocks #5. |
Key words | aplite, granite, Colorado |
Tech details | 1.66 MB. Thin section. Nikon FDX-35. |
GeoDIL number | 1699 |
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