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
Quinta do Valente Mine, U.F São Pedro Sul， Várzea e Baiões, 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 Quinta do Valente Mine, U.F São Pedro Sul， Várzea e Baiões, São Pedro do Sul, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:912969
Long-form Identifier:1:3:912969:6
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
3.9km (2.4 miles) ⓘPoço das Fragas Mine, Bordonhos, São Pedro do Sul, Viseu, Portugal
4.6km (2.8 miles) ⓘGândara Mine, São Félix, São Pedro do Sul, Viseu, Portugal
4.6km (2.9 miles) ⓘBejanca Mine (Carvalhal do Estanho), Queirã, Vouzela, Viseu, Portugal
5.2km (3.2 miles) ⓘPinhais da Tapada Mine, U.F Fataunos e Figueiredo das Donas, Vouzela, Viseu, Portugal
6.0km (3.7 miles) ⓘBejanca e Bodiosa Mining Field, U.F Couto de Cima e Couto de Baixo, Viseu, Viseu, Portugal
8.9km (5.5 miles) ⓘRegada Mine, Serrazes, São Pedro do Sul, Viseu, Portugal
9.5km (5.9 miles) ⓘFonte da Senhora Mine, São Cipriano e Vil do Souto, Viseu, Viseu, Portugal
9.9km (6.2 miles) ⓘRibeira de Baje e Loureiro Mines, Sul, São Pedro do Sul, Viseu, Portugal
10.3km (6.4 miles) ⓘCantarinhos Mine, U.F Boa Aldeia， Farminhão e Torredeita, Viseu, Viseu, Portugal
10.3km (6.4 miles) ⓘSenhora do Crasto Mine, São Cipriano e Vil do Souto, Viseu, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1395SnW
 
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