| Locality type: | Prospect |
| Classification |
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| Species: | 'Silica' (not an IMA approved species) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Silica data |
| Locality Data: | Click here to view Antioch-Marchio prospect, Antioch, Contra Costa County, California, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 716369 |
| Long-form Identifier: | 1:3:716369:2 |
| GUID (UUID V4): | 197a8765-4442-47f6-ad66-28eec891a639 |
| Nearest other occurrences of Silica |
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| 4.4km (2.7 miles) | ⓘPittsburg Sand Company Mine, Somersville, Contra Costa County, California, USA |
| 4.4km (2.7 miles) | ⓘAntioch Mine, Somersville, Contra Costa County, California, USA |
| 5.9km (3.7 miles) | ⓘRoberts Sand Company Mine (Black Diamond Mine), Nortonville, Contra Costa County, California, USA |
| 6.1km (3.8 miles) | ⓘUnnamed Silica mine [1], Nortonville, Contra Costa County, California, USA |
| 11.2km (7.0 miles) | ⓘSilica Company of California Mine, Brentwood, Contra Costa County, California, USA |
| 16.1km (10.0 miles) | ⓘByron plant, Byron, Contra Costa County, California, USA |
| 37.1km (23.0 miles) | ⓘUnknown Silica prospect [1], Tesla, Livermore Mining District (Tesla District), Alameda County, California, USA |
| 71.5km (44.4 miles) | ⓘHammond occurrence (Silica No. 1), Copper Mountain, Black Wonder Mining District, Stanislaus County, California, USA |
| 73.0km (45.3 miles) | ⓘJ. J. Cummings and Thomas Wolf property, Patterson, Stanislaus County, California, USA |
| 84.2km (52.3 miles) | ⓘPacific Clay Products pit, Camanche, Camanche Mining District, Calaveras County, California, USA |
| References |
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