| Locality type: | Outcrop |
| 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 Sementina, Bellinzona, Bellinzona, Ticino, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 997129 |
| Long-form Identifier: | 1:3:997129:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 26.2km (16.3 miles) | ⓘMadonna d'Ongero, Carona, Lugano, Ticino, Switzerland |
| 31.4km (19.5 miles) | ⓘPuricelli Quarry, Cavagnano, Cuasso al Monte, Varese Province, Lombardy, Italy |
| 31.8km (19.8 miles) | ⓘLaghetto Quarry, Cavagnano, Cuasso al Monte, Varese Province, Lombardy, Italy |
| 32.0km (19.9 miles) | ⓘSubalpina Quarry (Mantegazza Quarry; Gebel Quarry; Bianchi Quarry), Cavagnano, Cuasso al Monte, Varese Province, Lombardy, Italy |
| 32.2km (20.0 miles) | ⓘBonomi Quarry, Cuasso al Piano, Cuasso al Monte, Varese Province, Lombardy, Italy |
| 35.0km (21.8 miles) | ⓘTanno Pegmatitic Field, Chiavenna, Sondrio Province, Lombardy, Italy |
| 37.4km (23.2 miles) | ⓘPiano del Lavonchio (Piano dei Lavonchi), Rio Vasca, Craveggia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 38.2km (23.7 miles) | ⓘEglio, Craveggia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 38.7km (24.0 miles) | ⓘLake Tremorgio, Fiesso, Prato (Leventina), Leventina, Ticino, Switzerland |
| 49.0km (30.4 miles) | ⓘMont'Orfano (Montorfano), Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| References |
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