| 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 Els Frares quarry (Riera d'Avencó; Riera d'Avençó), Aiguafreda, Vallès Oriental, Barcelona, Catalonia, Spain |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 435342 |
| Long-form Identifier: | 1:3:435342:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 10.5km (6.5 miles) | ⓘLa Erola pegmatite field, Viladrau, Osona, Girona, Catalonia, Spain |
| 30.3km (18.8 miles) | ⓘCan Donadeu quarry, Sant Fost de Campsentelles, Vallès Oriental, Barcelona, Catalonia, Spain |
| 33.3km (20.7 miles) | ⓘMontcada Hill Quarry, Montcada i Reixac, Vallès Occidental, Barcelona, Catalonia, Spain |
| 33.3km (20.7 miles) | ⓘOsor Mines, Osor, Girona, Catalonia, Spain |
| 36.5km (22.7 miles) | ⓘRialls quarry (Montpalau quarry), Tordera, Maresme, Barcelona, Catalonia, Spain |
| 37.2km (23.1 miles) | ⓘMas Sever Quarry, Massabè, Sils, Girona, Catalonia, Spain |
| 37.2km (23.1 miles) | ⓘCan Súria quarry (Sant Ramón quarry; Guixeres quarry), Maçanet de la Selva, Girona, Catalonia, Spain |
| 40.5km (25.2 miles) | ⓘBerta quarry and mine, Sant Cugat del Vallès-El Papiol, Vallès Occidental-Baix Llobregat, Barcelona, Catalonia, Spain |
| 46.1km (28.6 miles) | ⓘMontjuïc, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain |
| 56.3km (35.0 miles) | ⓘElvira Mine, Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain |
| References |
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