| Locality type: | Mine |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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|
| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Casas Novas Mine, Santiago do Escoural, Montemor-o-Novo, Évora, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1972008 |
| Long-form Identifier: | 1:3:1972008:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 13.9km (8.6 miles) | ⓘBarrocal quarries, Nossa Senhora da Tourega e Nossa Senhora de Guadalupe, Évora, Évora, Portugal |
| 15.2km (9.5 miles) | ⓘMonfurado gold prospect, São Cristóvão, Montemor-o-Novo, Évora, Portugal |
| 32.2km (20.0 miles) | ⓘPedras Pintas Mine, Cortiçadas de Lavre e Lavre, Montemor-o-Novo, Évora, Portugal |
| 62.8km (39.0 miles) | ⓘLousal Mine, Azinheira dos Barros, Grândola, Setúbal, Portugal |
| 72.5km (45.1 miles) | ⓘFerrarias e Castelo Mine, Santa Vitória e Mombeja, Beja, Beja, Portugal |
| 82.9km (51.5 miles) | ⓘCabeço de Vide ultramafic complex, Alter do Chão, Portalegre, Portugal |
| 83.9km (52.1 miles) | ⓘD. João quarry (Herdade do Padre João), Monforte, Monforte, Portalegre, Portugal |
| References |
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