| Locality type: | Adit |
| 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: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Sant Marçal (San Marsal; Sant Marsal mines), Viladrau, Osona, Girona, Catalonia, Spain |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 229957 |
| Long-form Identifier: | 1:3:229957:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 4.4km (2.8 miles) | ⓘLa Erola pegmatite field, Viladrau, Osona, Girona, Catalonia, Spain |
| 6.7km (4.2 miles) | ⓘLa Noguerola, Viladrau, Osona, Girona, Catalonia, Spain |
| 9.4km (5.9 miles) | ⓘSala quarry, Gualba quarries, Gualba, Vallès Oriental, Barcelona, Catalonia, Spain |
| 15.1km (9.4 miles) | ⓘMas Joanhuix pegmatite, Sant Hilari Sacalm, La Selva, Girona, Catalonia, Spain |
| 21.9km (13.6 miles) | ⓘOsor Mines, Osor, Girona, Catalonia, Spain |
| 25.5km (15.8 miles) | ⓘMas Sever Quarry, Massabè, Sils, Girona, Catalonia, Spain |
| 28.7km (17.8 miles) | ⓘRialls quarry (Montpalau quarry), Tordera, Maresme, Barcelona, Catalonia, Spain |
| 43.3km (26.9 miles) | ⓘPuig de la Garrinada Volcano, Olot, Girona, Catalonia, Spain |
| 50.6km (31.5 miles) | ⓘBerta quarry and mine, Sant Cugat del Vallès-El Papiol, Vallès Occidental-Baix Llobregat, Barcelona, Catalonia, Spain |
| 67.7km (42.1 miles) | ⓘCostabonne mines (Costabona mines), Prats-de-Mollo-la-Preste, Céret, Pyrénées-Orientales, Occitanie, France |
| References |
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