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Muscovite from
Borralha Mines, Salto, Montalegre, Vila Real, Portugal


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Comments:Early phase, associated with quartz (vein walls).
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Borralha Mines, Salto, Montalegre, Vila Real, Portugal
Data Identifiers
Mindat Occurrence Record ID:320230
Long-form Identifier:1:3:320230:2
GUID (UUID V4):0
Nearest other occurrences of Muscovite
9.1km (5.7 miles) ⓘEastern pegmatite, Muro Alto Mine, Anjos e Vilar do Chão, Vieira do Minho, Braga, Portugal
9.1km (5.7 miles) ⓘWestern pegmatite, Muro Alto Mine, Anjos e Vilar do Chão, Vieira do Minho, Braga, Portugal
12.9km (8.0 miles) ⓘLousas aplite-pegmatite, Dornelas, Boticas, Vila Real, Portugal
14.9km (9.3 miles) ⓘLas Sombras Mine, Lobios, Ourense, Galicia, Spain
15.1km (9.4 miles) ⓘBorrageiro Mine, Cabril, Montalegre, Vila Real, Portugal
18.3km (11.4 miles) ⓘCarris Mines, Cabril, Montalegre, Vila Real, Portugal
18.8km (11.7 miles) ⓘAldeia LCT pegmatite dykes, Canedo, Ribeira de Pena, Vila Real, Portugal
20.2km (12.6 miles) ⓘMata da Lapeira Mine, Basto (São Clemente), Celorico de Basto, Braga, Portugal
22.6km (14.1 miles) ⓘDornas Mine, Bouro (Santa Maria), Amares, Braga, Portugal
25.1km (15.6 miles) ⓘMonte de Entre-Portelas Mine (S. João Mine; Adoria Mine), Cerva e Limões, Ribeira de Pena, Vila Real, Portugal
References
Bull. Minéral. , 1984, 107, pp. 273-284.
Losantos, Emma; Borrajo, Iñigo; Losada, Iván; Boixet, Lluís; Castelo Branco, José M.; Tornos, Fernando (2025) Sn and W mineralisation in the Iberian Peninsula. Ore Geology Reviews, 179. 106542 doi:10.1016/j.oregeorev.2025.106542
Mota, Alexandra; Sant’Ovaia, Helena; Fádon, Oscar; Noronha, Fernando (2026) The Geochemistry of Granites Associated with W-Sn Deposits of North and Central Portugal and Castilla-León in Spain. Minerals, 16 (8). doi:10.3390/min16080823
 
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