| Locality type: | Mine |
| Classification |
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| Species: | Quartz |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Quartz data |
| Locality Data: | Click here to view St. Johns Mine (St. John Mine; Vallejo Mine; St. Johns Quicksilver Mine), Sulfur Springs Mountain, Vallejo, Solano County, California, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 334758 |
| Long-form Identifier: | 1:3:334758:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Quartz |
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| 29.1km (18.1 miles) | ⓘSpruce Street Thunder Egg locality, Berkeley, Alameda County, California, USA |
| 31.6km (19.6 miles) | ⓘUnnamed gemstone occurrence [1], Berkeley, Alameda County, California, USA |
| 35.5km (22.1 miles) | ⓘEagle Peak Au-Cu occurrence, Eagle Peak, Clayton, Contra Costa County, California, USA |
| 36.2km (22.5 miles) | ⓘUnity claim [?], Eagle Peak, Clayton, Contra Costa County, California, USA |
| 38.2km (23.7 miles) | ⓘBella Oak Mine (Belle Oak Mine; Oakville Mine; Bella Union Mine), Oakville, Oakville Mining District, Napa County, California, USA |
| 38.7km (24.1 miles) | ⓘMount Diablo Mine, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA |
| 39.1km (24.3 miles) | ⓘMazza prospect (Mazza Ranch prospect), Novato, Marin County, California, USA |
| 40.2km (25.0 miles) | ⓘLa Joya Mine, Oakville, Oakville Mining District, Napa County, California, USA |
| 41.9km (26.0 miles) | ⓘEast Peak, Mount Tamalpais, Marin County, California, USA |
| 42.4km (26.3 miles) | ⓘMaillard Ranch occurrence [2], San Geronimo, Marin County, California, USA |
| References |
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