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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Feldspar Group from
Seixinho Mine, Santiago de Cassurrães e Póvoa de Cervães, Mangualde, Viseu, Portugal


Locality type:Mine
Classification
Species:'Feldspar Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Seixinho Mine, Santiago de Cassurrães e Póvoa de Cervães, Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:895855
Long-form Identifier:1:3:895855:6
GUID (UUID V4):0
Nearest other occurrences of Feldspar Group
2.4km (1.5 miles) ⓘSeixinho Mine - Cunha Alta, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
5.0km (3.1 miles) ⓘRochel, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
5.1km (3.2 miles) ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal
5.1km (3.2 miles) ⓘChão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
5.2km (3.2 miles) ⓘCabeço do Seixo, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
5.4km (3.4 miles) ⓘCorvaceira quarry, Corvaceira, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
7.8km (4.8 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
8.4km (5.2 miles) ⓘVila Seca Mine, Vila Seca, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
8.5km (5.3 miles) ⓘUnnamed pegmatite, São Cosmado, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
10.5km (6.5 miles) ⓘPedrouços Mine, Fornos de Maceira Dão, Mangualde, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp database ID 2114QzFlBe
 
and/or  
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