| 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 Gergovie, La Roche-Blanche, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| Photo Gallery | View Gallery (3 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 110508 |
| Long-form Identifier: | 1:3:110508:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 5.7km (3.5 miles) | ⓘCôte des Pompes, Saulzet-le-Chaud, Romagnat, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 6.0km (3.7 miles) | ⓘPuy de Crouel, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 7.1km (4.4 miles) | ⓘPuy de la Poix, Clermont-Ferrand, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 11.1km (6.9 miles) | ⓘPuy du Mur Quarry, Mur-sur-Allier, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 12.1km (7.5 miles) | ⓘChamp des Poix mine, Pont-du-Château, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 13.1km (8.1 miles) | ⓘPuy de la Vache, Saint-Genès-Champanelle, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 13.4km (8.3 miles) | ⓘPuy de Lassolas, Saint-Genès-Champanelle, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 18.0km (11.2 miles) | ⓘPrudeux, Saint-Babel, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 18.0km (11.2 miles) | ⓘMineral spring, Saint-Nectaire, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| 19.0km (11.8 miles) | ⓘRoca-Neyra, Perrier, Issoire, Puy-de-Dôme, Auvergne-Rhône-Alpes, France |
| References |
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Gergovie, La Roche-Blanche, Clermont-Ferrand, Puy-de-Dôme, Auvergne-Rhône-Alpes, France