| Locality type: | Pluton |
| 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 Lamas de Olo pluton, Vila Marim, Vila Real, Vila Real, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1618719 |
| Long-form Identifier: | 1:3:1618719:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 12.4km (7.7 miles) | ⓘMonte de Entre-Portelas Mine (S. João Mine; Adoria Mine), Cerva e Limões, Ribeira de Pena, Vila Real, Portugal |
| 34.0km (21.1 miles) | ⓘAlijó spodumene pegmatite, São Mamede de Ribatua, Alijó, Vila Real, Portugal |
| 37.4km (23.3 miles) | ⓘBorralha Mines, Salto, Montalegre, Vila Real, Portugal |
| 37.5km (23.3 miles) | ⓘSão Pedro das Águias Mine, U.F Távora e Pereiro, Tabuaço, Viseu, Portugal |
| 41.4km (25.7 miles) | ⓘSeixigal (Pereira de Selão), Vilas Boas, Vidago, Chaves, Vila Real, Portugal |
| 47.4km (29.5 miles) | ⓘLimarinho deposit, Ardãos e Bobadela, Boticas, Vila Real, Portugal |
| 52.5km (32.6 miles) | ⓘBorrageiro Mine, Cabril, Montalegre, Vila Real, Portugal |
| 57.8km (35.9 miles) | ⓘRatoeira No. 1 quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal |
| 58.1km (36.1 miles) | ⓘRatoeira quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal |
| 59.1km (36.7 miles) | ⓘRegoufe Mines, Covelo de Paivó, Arouca, Aveiro, Portugal |
| References |
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