Montmorillonite Mines in California
3Total Sites
1Active
Montmorillonite Mining in California
California has 3 montmorillonite-related mine and mineral deposit locations recorded in federal databases. Of these, 1 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| San Bernardino County | 2 |
| Inyo County | 1 |
Montmorillonite Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Robertson Clay Mine | San Bernardino | Surface | Producer |
| Ballarat Saponite Prospect | Inyo | Surface | Prospect |
| Silver Lake Clay Mine | San Bernardino | Surface | Past Producer |
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