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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Quartz from
Unnamed pegmatite, São Cosmado, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


Locality type:Occurrence
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Unnamed pegmatite, São Cosmado, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:1308560
Long-form Identifier:1:3:1308560:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
2.2km (1.3 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
2.5km (1.5 miles) ⓘPedrouços Mine, Fornos de Maceira Dão, Mangualde, Viseu, Portugal
3.0km (1.9 miles) ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
3.9km (2.4 miles) ⓘChão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.0km (2.5 miles) ⓘCabeço do Seixo, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.0km (2.5 miles) ⓘRochel, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.8km (3.0 miles) ⓘCunha Baixa Mine, Cunha Baixa, Mangualde, Viseu, Portugal
7.0km (4.3 miles) ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal
7.8km (4.9 miles) ⓘSeixinho Mine - Cunha Alta, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
8.2km (5.1 miles) ⓘPicoto Mine, Vilar Seco, Nelas, Viseu, Portugal
References
Luis Martins in-situ observations
 
and/or  
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