| Location: | San Mateo County, California, United States, North America |
| Lat / long: | 37.26051, -122.41384 |
| dep_id: | 10213904 |
| mrds_id: | W025071 |
| mas_id: | 60810046 |
| Commodity type: | nonmetallic |
| Major mineral: | Gemstone |
| Operation type: | Surface |
| Development status: | Past Producer |
| Reporter: | Western Field Operations Center (WFOC) |
| References: |
|