| Locality type: | Parish |
| 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 |
| Associated Minerals Based on Photo Data: |
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| Almandine | ⓘ3 photos of Biotite associated with Almandine at this locality. |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Chacim, Macedo de Cavaleiros, Bragança, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 422533 |
| Long-form Identifier: | 1:3:422533:1 |
| GUID (UUID V4): | e9bec6bf-c51b-47ca-a056-c5bf047875d6 |
| Nearest other occurrences of Biotite |
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|
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| 8.4km (5.2 miles) | ⓘMacedo de Cavaleiros Volcanic area, Bornes, Macedo de Cavaleiros, Bragança, Portugal |
| 24.4km (15.2 miles) | ⓘMurçós Mines, Murçós, Macedo de Cavaleiros, Bragança, Portugal |
| 32.0km (19.9 miles) | ⓘErvedosa Mine (Tuela Mine), Ervedosa, Vinhais, Bragança, Portugal |
| 38.5km (24.0 miles) | ⓘTrigueiriça Mines, Rebordelo, Vinhais, Bragança, Portugal |
| 52.4km (32.5 miles) | ⓘNumão prospect, Numão, Vila Nova de Foz Côa, Guarda, Portugal |
| 56.9km (35.4 miles) | ⓘSeixigal (Pereira de Selão), Vidago, Chaves, Vila Real, Portugal |
| 65.4km (40.6 miles) | ⓘLimarinho deposit, Ardãos e Bobadela, Boticas, Vila Real, Portugal |
| 71.4km (44.4 miles) | ⓘBarroso-Alvão pegmatite field, Vila Real, Portugal |
| 76.3km (47.4 miles) | ⓘLamas de Olo pluton, Vila Marim, Vila Real, Vila Real, Portugal |
| 78.4km (48.7 miles) | ⓘPortugal Nos. 1 & 2 quarries, Malpartida e Vale de Coelha, Almeida, Guarda, Portugal |
| References |
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