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Bertrandite from
Alvarrões Mine, Gonçalo, Guarda, Guarda, Portugal


Locality type:Mine
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Comments:highly lustrous, usually growing on small quartz crystals, easily overlooked
Habit:tabular to 6mm
Colour:clear colorless; white
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Alvarrões Mine, Gonçalo, Guarda, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:882540
Long-form Identifier:1:3:882540:7
GUID (UUID V4):0
Nearest other occurrences of Bertrandite
2.2km (1.4 miles) ⓘVela Sudoeste quarry, Vela, Guarda, Guarda, Portugal
3.3km (2.1 miles) ⓘVela Nordeste quarry, Vela, Guarda, Guarda, Portugal
4.6km (2.9 miles) ⓘCovão quarry, Vela, Guarda, Guarda, Portugal
5.6km (3.5 miles) ⓘEN 18 roadcut, Vela, Guarda, Guarda, Portugal
9.5km (5.9 miles) ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal
20.6km (12.8 miles) ⓘMelo e Nabais, Gouveia, Guarda, Portugal
24.2km (15.0 miles) ⓘRoto-Bote quarry, Vila Franca da Serra, Gouveia, Guarda, Portugal
31.8km (19.8 miles) ⓘBom Sucesso No. 4 quarry, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
32.1km (19.9 miles) ⓘVila Seca Mine, Vila Seca, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
32.7km (20.3 miles) ⓘCova da Raposa Mine, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
References
Fuchs, A.; Fuchs, R. (2014): Rosaroter Elbait aus der Serra de Estrela, Portugal. Lapis 39 (3), 12-20.
 
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