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 Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France |
Data Identifiers |
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Mindat Occurrence Record ID: | 198805 |
Long-form Identifier: | 1:3:198805:5 |
GUID (UUID V4): | 3e50ee6c-b8c3-48e7-89c7-95e0fe9057f5 |
Nearest other occurrences of Opal |
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35.5km (22.0 miles) | ⓘQuistiav (Quistiave), Guern, Pontivy, Morbihan, Brittany, France |
References |
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Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France