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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Muscovite from
Cabeço do Seixo, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


Locality type:Shaft
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Cabeço do Seixo, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:845073
Long-form Identifier:1:3:845073:9
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.1km (0.1 miles) ⓘChão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.5km (2.8 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
6.1km (3.8 miles) ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal
8.0km (5.0 miles) ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal
9.8km (6.1 miles) ⓘCorvaceira quarry, Corvaceira, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
10.2km (6.3 miles) ⓘPicoto Mine, Vilar Seco, Nelas, Viseu, Portugal
10.3km (6.4 miles) ⓘSandiães, Castelo de Penalva, Penalva do Castelo, Viseu, Portugal
11.4km (7.1 miles) ⓘCova da Raposa Mine, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
13.0km (8.1 miles) ⓘVila Seca Mine, Vila Seca, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
13.2km (8.2 miles) ⓘBom Sucesso No. 4 quarry, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
References
Nunes, Rui (n.d.) Personal communication.
 
and/or  
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