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Bertrandite from
Companheiro No. 1 quarry, Sezures, Penalva do Castelo, Viseu, Portugal

Locality type:Quarry
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
References
References:Martin Slama Collection
Specimen source:Personally collected
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Companheiro No. 1 quarry, Sezures, Penalva do Castelo, Viseu, Portugal
Photo GalleryView Gallery (2 photos)
Nearest other occurrences of Bertrandite
3.0km (1.9 miles) Romãs quarry, Romãs, Sátão, Viseu, Portugal
10.9km (6.8 miles) Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
11.4km (7.1 miles) Real quarry, Real, Penalva do Castelo, Viseu, Portugal
12.3km (7.7 miles) Lagares Mining Field, Viseu, Portugal
12.4km (7.7 miles) Rebentão Mine, Lagares do Estanho Mines, Queiriga, Vila Nova de Paiva, Viseu, Portugal
13.1km (8.1 miles) Nossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal
15.1km (9.4 miles) Ratoeira quarry, Gradiz, Aguiar da Beira, Guarda, Portugal
16.1km (10.0 miles) Granite quarries, Vila Franca da Serra, Gouveia, Guarda, Portugal
40.0km (24.9 miles) Alvarrões Mine, Seixo Amarelo, Guarda, Guarda, Portugal
40.3km (25.0 miles) Vela Nordeste quarry, Vela, Guarda, Guarda, Portugal
 
Mineral and/or Locality  
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