A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Andalusite (chiastolite) slate, Mariposa County, California |
|---|---|
| Description | This fine grained slate contains chiastolite (andalusite) crystals up to 0.5 cm in diameter, but they are very hard to see because they have been altered and have about the same color as the rest of the rock. The sample is 10 cm across. |
| Chronostratigraphy | Upper Jurassic |
| Location | USA ▹ California ▹ Mariposa |
| Photographer | Mike Davis. 2001-04-10. |
| Collection | Ward’s Collection of Classic North American Rocks #84. |
| Key words | andalusite slate, chiastolite, California |
| Tech details | 447 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 335 |
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