| Locality type: | Census-designated Place |
| Classification |
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| Species: | Quartz var: Chalcedony |
| Formula: | SiO2 |
| Comments: | Chalcedony is found at "Agate Beach" as so-called "oil agate", apparently all of them are chert pebbles. |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Chert | 2 |
| Data |
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| Mineral Data: | Click here to view Chalcedony data |
| Locality Data: | Click here to view Bolinas, Marin County, California, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 936403 |
| Long-form Identifier: | 1:3:936403:5 |
| GUID (UUID V4): | 0 |
| Localities for Chalcedony in this Region |
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| Agate Beach, Bolinas, Marin County, California, USA |
| Nearest other occurrences of Chalcedony |
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| 2.6km (1.6 miles) | ⓘAgate Beach, Bolinas, Marin County, California, USA |
| 15.7km (9.7 miles) | ⓘRodeo Beach, Marin County, California, USA |
| 28.2km (17.5 miles) | ⓘUnited States Mint site, Duboce Street near Market Street, San Francisco, San Francisco County, California, USA |
| 36.5km (22.7 miles) | ⓘSpruce Street Thunder Egg locality, Berkeley, Alameda County, California, USA |
| 41.3km (25.6 miles) | ⓘUnnamed gemstone occurrence [1], Berkeley, Alameda County, California, USA |
| 61.8km (38.4 miles) | ⓘLa Joya Mine, Oakville, Oakville Mining District, Napa County, California, USA |
| 63.1km (39.2 miles) | ⓘBella Oak Mine (Belle Oak Mine; Oakville Mine; Bella Union Mine), Oakville, Oakville Mining District, Napa County, California, USA |
| 63.6km (39.5 miles) | ⓘLa Vista Quarry, Hayward, Alameda County, California, USA |
| 75.2km (46.7 miles) | ⓘGreat Eastern and Mount Jackson Mine, Guerneville, Guerneville Mining District, Coast Range, Sonoma County, California, USA |
| 76.0km (47.3 miles) | ⓘPescadero Beach Mine, Pescadero, San Mateo County, California, USA |
| References |
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Agate Beach, Bolinas, Marin County, California, USA