Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Cassiterite from
Regada Mine, Serrazes, São Pedro do Sul, Viseu, Portugal


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Regada Mine, Serrazes, São Pedro do Sul, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:912979
Long-form Identifier:1:3:912979:5
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
5.3km (3.3 miles) ⓘPinhais da Tapada Mine, U.F Fataunos e Figueiredo das Donas, Vouzela, Viseu, Portugal
7.6km (4.7 miles) ⓘPoço das Fragas Mine, Bordonhos, São Pedro do Sul, Viseu, Portugal
8.9km (5.5 miles) ⓘQuinta do Valente Mine, U.F São Pedro Sul， Várzea e Baiões, São Pedro do Sul, Viseu, Portugal
9.5km (5.9 miles) ⓘBejanca Mine (Carvalhal do Estanho), Queirã, Vouzela, Viseu, Portugal
9.8km (6.1 miles) ⓘGândara Mine, São Félix, São Pedro do Sul, Viseu, Portugal
11.1km (6.9 miles) ⓘVermilhas No. 1 Mine, U.F Cambra e Carvalhal de Vermilhas, Vouzela, Viseu, Portugal
11.4km (7.1 miles) ⓘBejanca e Bodiosa Mining Field, U.F Couto de Cima e Couto de Baixo, Viseu, Viseu, Portugal
11.4km (7.1 miles) ⓘRibeira de Baje e Loureiro Mines, Sul, São Pedro do Sul, Viseu, Portugal
12.4km (7.7 miles) ⓘGourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
12.4km (7.7 miles) ⓘPadrão Mine, Manhouce, São Pedro do Sul, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1933WSn
 
and/or  
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