| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Torbernite | 2 |
| Metatorbernite | 1 |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Bigay Mine, Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 73707 |
| Long-form Identifier: | 1:3:73707:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 0.8km (0.5 miles) | ⓘGourniaud Mine, Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 3.6km (2.2 miles) | ⓘRoffin Mine, Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 3.7km (2.3 miles) | ⓘEtang de Reliez, Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 4.2km (2.6 miles) | ⓘGagnol Mine, Ris, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 4.3km (2.7 miles) | ⓘReliez, Ris, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 5.1km (3.2 miles) | ⓘBancherelle Mine, Ris, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 36.4km (22.6 miles) | ⓘChamp des Poix mine, Pont-du-Château, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 37.8km (23.5 miles) | ⓘPuy du Mur Quarry, Mur-sur-Allier, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 43.2km (26.8 miles) | ⓘPuy de la Poix, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 44.5km (27.6 miles) | ⓘPuy de Crouel, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| References |
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Bigay Mine, Lachaux, Thiers, Puy-de-Dôme, Auvergne-Rhône-Alpes, France