| 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 |
 |