| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Fosso della Chiesa Mine, Pompana, Murlo, Siena Province, Tuscany, Italy |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 413909 |
| Long-form Identifier: | 1:3:413909:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 21.7km (13.5 miles) | ⓘLe Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy |
| 28.1km (17.5 miles) | ⓘMazzarelle quarry, Castel del Piano, Grosseto Province, Tuscany, Italy |
| 49.7km (30.9 miles) | ⓘSensano, Volterra, Pisa Province, Tuscany, Italy |
| 50.0km (31.1 miles) | ⓘPoggio del Cornocchio quarries, Volterra, Pisa Province, Tuscany, Italy |
| 50.4km (31.3 miles) | ⓘMount Leo, Monterotondo Marittimo, Grosseto Province, Tuscany, Italy |
| 53.1km (33.0 miles) | ⓘMonterufoli, Pomarance, Pisa Province, Tuscany, Italy |
| 55.1km (34.2 miles) | ⓘPoggio Castiglione, Canneto, Monteverdi Marittimo, Pisa Province, Tuscany, Italy |
| 56.7km (35.2 miles) | ⓘLa Striscia, Il Castagno, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy |
| 56.9km (35.4 miles) | ⓘGambassi Quarry (Borgo alla Collina), Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy |
| 57.3km (35.6 miles) | ⓘFornaci di Montignoso Quarry (Bi.Bru Quarry), Montaione, Metropolitan City of Florence, Tuscany, Italy |
| References |
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