| Title | Graphitic marble, Los Angeles County, California |
| Description | This marble is dark gray because of the presence of graphite. Also present, but not visible in hand specimen, is phlogopite (a mica). This sample is 9.5 cm across. |
| Location | USA ▹ California ▹ Los Angeles County. Near Los Angeles. |
| Photographer | Nessa Eull. 2001-05-22. |
| Collection | Ward’s University Rock Collection #171. |
| Key words | marble, graphite, California |
| Tech details | 956 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 504 |
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