Diatomite Mines in California
94Total Sites
24Active
Diatomite Mining in California
California has 94 diatomite-related mine and mineral deposit locations recorded in federal databases. Of these, 24 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
Diatomite Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Basalt Rock Co | Napa | Producer | |
| Basalt Rock Co. Quarry, Possibly | Napa | Producer | |
| Burney Mine | Shasta | Surface | Producer |
| Burney Pit | Shasta | Surface | Producer |
| Diatomite Occurrence | Kern | Producer | |
| Featherstone Deposit | Los Angeles | Producer | |
| Felder | Sonoma | Producer | |
| Goodman Bros. Deposit | Sonoma | Producer | |
| Grefco Diatomite Mill | Santa Barbara | Processing Plant | Producer |
| Insulator Group | Shasta | Producer | |
| Lake Britton Quarry | Shasta | Surface | Producer |
| Lompoc Mill | Santa Barbara | Processing Plant | Producer |
| Long Valley Quarries | Lassen | Surface | Producer |
| Mabel S Claim | Kern | Producer | |
| Miguelito Canyon Quarry | Santa Barbara | Surface | Producer |
| Mount Shasta Silica | Shasta | Producer | |
| Palos Colorados Quarry | Santa Barbara | Surface | Producer |
| Richter Deposit | Sonoma | Producer | |
| Sampson Lode | Tuolumne | Producer | |
| Shasta Diatomite Group | Shasta | Producer | |
| Stewart & Moore Prospect | Shasta | Producer | |
| Stewart & Moore Prospect | Shasta | Surface | Producer |
| Venture Ii Mine | Shasta | Surface | Producer |
| Work Ranch Deposit | Monterey | Producer | |
| Aliso Prospect | Orange | Occurrence | |
| Banning Quarry | Los Angeles | Surface | Past Producer |
| Bartlet Springs | Lake | Surface | Unknown |
| Basalt Rock Co. | Napa | Occurrence | |
| California Kieselguhr Co. | Monterey | Underground | Past Producer |
| Diatomaceous Earth Deposit | Los Angeles | Occurrence | |
| Diatomaceous Earth Quarry | Los Angeles | Surface | Past Producer |
| Diatomite Occurrence | Inyo | Surface | Past Producer |
| Diatomite Occurrence | Stanislaus | Past Producer | |
| Diatomite Occurrence | Monterey | Surface | Past Producer |
| Diatomite Occurrence | Napa | Past Producer | |
| Diatomite Occurrence | Madera | Surface | Occurrence |
| Dibble Pit | Santa Barbara | Surface | Past Producer |
| Dicalite | Los Angeles | Occurrence | |
| Featherstone Deposit | Los Angeles | Surface | Past Producer |
| Felder | Sonoma | Surface | Past Producer |
| Ferrell Deposit | San Luis Obispo | Surface | Occurrence |
| Goodman Bros. Deposit | Sonoma | Surface | Past Producer |
| Great Lakes Carbon Corp. | Monterey | Surface | Prospect |
| Great Lakes Carbon Corp. | Santa Barbara | Surface | Past Producer |
| Grefco | Shasta | Past Producer | |
| Grefco | Santa Barbara | Surface | Past Producer |
| Insulator Group | Shasta | Unknown | |
| Jens Deposit | Monterey | Underground | Past Producer |
| Johns-Manville Quarries | Santa Barbara | Surface | Past Producer |
| Katz Diatomaceous Shale | Los Angeles | Surface | Prospect |
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