| Location: | Marin County, California, United States, North America |
| Lat / long: | 38.16959, -122.68136 |
| dep_id: | 10115440 |
| mrds_id: | W024119 |
| mas_id: | 60410033 |
| Commodity type: | nonmetallic |
| Major mineral: | Gemstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| Reporter: | Western Field Operations Center (WFOC) |
| References: |
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