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Biotite from
Gold deposits (incl. Saturno Mine; Los Espinos Valley), Barruecopardo, Salamanca, Castile and Leon, Spain


Locality type:Deposit
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Gold deposits (incl. Saturno Mine; Los Espinos Valley), Barruecopardo, Salamanca, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1992579
Long-form Identifier:1:3:1992579:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
14.3km (8.9 miles) ⓘBarruecopardo Mine, Barruecopardo, Salamanca, Castile and Leon, Spain
47.5km (29.5 miles) ⓘMimosa Mine, Aldehuela de la Bóveda, Salamanca, Castile and Leon, Spain
48.4km (30.1 miles) ⓘPortugal 1 & 2 quarries, Malpartida, Malpartida e Vale de Coelha, Almeida, Guarda, Portugal
49.0km (30.5 miles) ⓘGolpejas Mining Group, Golpejas, Salamanca, Castile and Leon, Spain
57.0km (35.4 miles) ⓘNumão prospect, Numão, Vila Nova de Foz Côa, Guarda, Portugal
59.8km (37.1 miles) ⓘMacedo de Cavaleiros Volcanic area, Bornes, Macedo de Cavaleiros, Bragança, Portugal
66.1km (41.0 miles) ⓘVillarino trás la Sierra, Trabazos, Zamora, Castile and Leon, Spain
67.8km (42.1 miles) ⓘCerezal de Aliste, Muelas del Pan, Zamora, Castile and Leon, Spain
67.9km (42.2 miles) ⓘSan Mamed, Rábano de Aliste, Zamora, Castile and Leon, Spain
68.0km (42.3 miles) ⓘSanta Ana, Alcañices, Zamora, Castile and Leon, Spain
References
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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