Locality type: | Quarry |
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 Fornaci di Montignoso Quarry (Bi.Bru Quarry), Montignoso, Montaione, Metropolitan City of Florence, Tuscany, Italy |
Data Identifiers |
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Mindat Occurrence Record ID: | 1237028 |
Long-form Identifier: | 1:3:1237028:5 |
GUID (UUID V4): | bcbd0330-3c7d-4879-b4f0-01a674fd7ec0 |
Nearest other occurrences of Opal |
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1.0km (0.6 miles) | ⓘLa Striscia, Il Castagno, Gambassi Terme, Metropolitan City of Florence, Tuscany, Italy |
2.6km (1.6 miles) | ⓘIano (Jano), Montaione, Metropolitan City of Florence, Tuscany, Italy |
6.7km (4.1 miles) | ⓘPoggio del Cornocchio, Volterra, Pisa Province, Tuscany, Italy |
8.0km (5.0 miles) | ⓘSensano, Volterra, Pisa Province, Tuscany, Italy |
30.6km (19.0 miles) | ⓘMonterufoli, Pomarance, Pisa Province, Tuscany, Italy |
31.4km (19.5 miles) | ⓘLa Sassa, Montecatini Val di Cecina, Pisa Province, Tuscany, Italy |
32.9km (20.5 miles) | ⓘPoggio Castiglione, Canneto, Monteverdi Marittimo, Pisa Province, Tuscany, Italy |
33.5km (20.8 miles) | ⓘCarraie Hill, Impruneta, Metropolitan City of Florence, Tuscany, Italy |
36.6km (22.7 miles) | ⓘQuartz occurrences, Gabbro, Rosignano Marittimo, Livorno Province, Tuscany, Italy |
36.7km (22.8 miles) | ⓘLe Cetine di Cotorniano Mine, Chiusdino, Siena Province, Tuscany, Italy |
References |
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· Betti, C., Bazzoni, C., Bernocchi, M., Pagani, G., Ciriotti, M.E., Bittarello, E., Batoni, M., Batacchi, C. (2017): Poggio del Cornocchio e dintorni (Firenze - Pisa - Siena): storia, miniere e minerali di una zona poco conosciuta. Micro, 15, 1, 2-43. |