A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Phyllite, Mariposa County, California |
|---|---|
| Description | This is a very fine grained metamorphic rock. It is termed a phyllite because it is foliated and has a shiny/silky sheen to its surface. Even in thin section, the only major mineral that can be identified is quartz, but the shiny appearance suggests the presence of fine grained micas. This sample is 9.5 cm across. |
| Location | USA ▹ California ▹ Mariposa. Near Mariposa. |
| Photographer | Mike Davis. 2001-04-26. |
| Collection | Ward’s University Rock Collection #185. |
| Key words | phyllite, California |
| Tech details | 554 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens. |
| GeoDIL number | 423 |
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