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
Fonte do Seixo Mine, Adão, Guarda, Guarda, 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 Fonte do Seixo Mine, Adão, Guarda, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:915142
Long-form Identifier:1:3:915142:0
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
4.5km (2.8 miles) ⓘAlto do Feijão Mine, União de freguesias de Mizarela， Pêro Soares e Vila Soeiro, Guarda, Guarda, Portugal
4.5km (2.8 miles) ⓘGranja Mine, União de freguesias de Mizarela， Pêro Soares e Vila Soeiro, Guarda, Guarda, Portugal
5.6km (3.5 miles) ⓘCravos Mine, Videmonte, Guarda, Guarda, Portugal
5.9km (3.7 miles) ⓘPela Tapada Grande Mine, Arrifana, Guarda, Guarda, Portugal
6.2km (3.8 miles) ⓘVinhas Mine, Ramela, Guarda, Guarda, Portugal
7.1km (4.4 miles) ⓘVale da Nogueira Mine, Guarda (Sé), Guarda, Guarda, Portugal
8.0km (4.9 miles) ⓘLombas Mine, João Antão, Guarda, Guarda, Portugal
8.3km (5.2 miles) ⓘRibeira de Benespera and Quinta de São Miguel Mines, Benespera, Guarda, Guarda, Portugal
8.6km (5.4 miles) ⓘVinhas Mine, Arrifana, Guarda, Guarda, Portugal
8.8km (5.4 miles) ⓘSantana Mine, Santana da Azinha, Guarda, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1636WSn
 
and/or  
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