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Tourmaline from
Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu District, Portugal

Mineral Species
Species:Tourmaline
Formula:A(D3)G6(T6O18)(BO3)3X3Z
Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:International Geological Congress (2008) MRD-06 Geology and geoeconomical potential of pegmatite deposits: A case study
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu District, Portugal
Nearest other occurrences of Tourmaline
10.0km (6.2 miles) A Rebentão Mine, Lagares do Estanho Mines, Queiriga, Vila Nova de Paiva, Viseu District, Portugal
18.3km (11.4 miles) B Penalva do Castelo, Viseu District, Portugal
26.9km (16.7 miles) C Castro Daire, Viseu District, Portugal
29.7km (18.4 miles) D Viseu District, Portugal
33.1km (20.5 miles) E Paradinha, Viseu, Viseu District, Portugal
36.1km (22.4 miles) F Sítio do Castelo Mine (Folgosinho quarry), Folgosinho, Gouveia, Guarda District, Portugal
36.3km (22.6 miles) G Regoufe Mines, Covelo de Paivó, Arouca, Aveiro District, Portugal
48.5km (30.1 miles) H Seixo Amarelo, Guarda, Guarda District, Portugal
49.8km (30.9 miles) I Alvarrões Mine, Seixo Amarelo, Guarda, Guarda District, Portugal
50.9km (31.6 miles) J Gonçalo, Guarda, Guarda District, Portugal
72.3km (44.9 miles) K Monte de Entre-Portelas Mine (S. João Mine; Adoria Mine), Cerva, Ribeira de Pena, Vila Real District, Portugal
75.4km (46.9 miles) L Panasqueira Mine - Couto Mineiro da Panasqueira, Panasqueira, Covilhã, Castelo Branco District, Portugal
97.0km (60.3 miles) M Borralha Mine, Salto, Montalegre, Vila Real District, Portugal
99.7km (61.9 miles) N Barruecopardo Mine, Barruecopardo, Salamanca, Castile and Leon, Spain
139.1km (86.4 miles) O Viana do Castelo District, Portugal
187.2km (116.3 miles) P Valdeflórez (Valdeflores; San José de Valdeflores Mine; San José de Valdeflórez Mine), Cáceres, Cáceres, Extremadura, Spain
234.7km (145.8 miles) Q La Parrilla Mine (Adelaida open pit mine), Almoharín, Cáceres, Extremadura, Spain
235.8km (146.5 miles) R La Parilla Mine, Miajadas, Badajoz, Extremadura, Spain
Mineral and/or Locality  
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