| Locality type: | Mining Area |
| 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 Monterufoli, Pomarance, Pisa Province, Tuscany, Italy |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 160236 |
| Long-form Identifier: | 1:3:160236:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 2.8km (1.7 miles) | ⓘPoggio Castiglione, Canneto, Monteverdi Marittimo, Pisa Province, Tuscany, Italy |
| 5.9km (3.6 miles) | ⓘLa Sassa, Montecatini Val di Cecina, Pisa Province, Tuscany, Italy |
| 11.4km (7.1 miles) | ⓘMount Leo, Monterotondo Marittimo, Grosseto Province, Tuscany, Italy |
| 23.1km (14.4 miles) | ⓘMaffei Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy |
| 24.4km (15.2 miles) | ⓘBotro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy |
| 26.3km (16.4 miles) | ⓘSensano, Volterra, Pisa Province, Tuscany, Italy |
| 27.5km (17.1 miles) | ⓘPoggio del Cornocchio quarries, Volterra, Pisa Province, Tuscany, Italy |
| 29.8km (18.5 miles) | ⓘLa Striscia, Il Castagno, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy |
| 30.6km (19.0 miles) | ⓘFornaci di Montignoso Quarry (Bi.Bru Quarry), Montaione, Metropolitan City of Florence, Tuscany, Italy |
| 31.6km (19.7 miles) | ⓘIano (Jano), Montaione, Metropolitan City of Florence, Tuscany, Italy |
| References |
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