| Locality type: | Lake |
| 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 Lake Tremorgio, Fiesso, Prato (Leventina), Leventina, Ticino, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1000368 |
| Long-form Identifier: | 1:3:1000368:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 33.1km (20.6 miles) | ⓘBreccia outcrop, Triebten lake (Trübten lake), Oberaar lake area, Guttannen, Interlaken-Oberhasli, Bern, Switzerland |
| 38.7km (24.0 miles) | ⓘSementina, Bellinzona, Bellinzona, Ticino, Switzerland |
| 38.7km (24.1 miles) | ⓘVerampio-Crego area, Premia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 40.0km (24.9 miles) | ⓘPiano del Lavonchio (Piano dei Lavonchi), Rio Vasca, Craveggia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 41.0km (25.5 miles) | ⓘEglio, Craveggia, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 42.1km (26.2 miles) | ⓘWanni glacier - Scherbadung area (Monte Cervandone), Binn, Goms, Valais, Switzerland |
| 42.7km (26.5 miles) | ⓘRencio quarries, Crodo gneiss quarries, Crodo, Verbano-Cusio-Ossola Province, Piedmont, Italy |
| 42.8km (26.6 miles) | ⓘGischi glacier (incl. Gischihorn), Binn, Goms, Valais, Switzerland |
| 46.4km (28.8 miles) | ⓘChummibort, Grengiols, Östlich Raron, Valais, Switzerland |
| 48.6km (30.2 miles) | ⓘHillehorn northeast slope, Chummibort, Grengiols, Östlich Raron, Valais, Switzerland |
| References |
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