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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Plagioclase from
Regoufe Mines, Covelo de Paivó, Arouca, Aveiro, Portugal


Locality type:Mine
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Regoufe Mines, Covelo de Paivó, Arouca, Aveiro, Portugal
Data Identifiers
Mindat Occurrence Record ID:530416
Long-form Identifier:1:3:530416:5
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
37.0km (23.0 miles) ⓘCastromil Mines, Castromil, Sobreira, Paredes, Porto, Portugal
45.0km (28.0 miles) ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
56.8km (35.3 miles) ⓘSão Pedro das Águias Mine, U.F Távora e Pereiro, Tabuaço, Viseu, Portugal
59.1km (36.7 miles) ⓘLamas de Olo pluton, Vila Marim, Vila Real, Vila Real, Portugal
73.7km (45.8 miles) ⓘAlijó spodumene pegmatite, São Mamede de Ribatua, Alijó, Vila Real, Portugal
82.4km (51.2 miles) ⓘNumão prospect, Numão, Vila Nova de Foz Côa, Guarda, Portugal
99.9km (62.1 miles) ⓘBorrageiro Mine, Cabril, Montalegre, Vila Real, Portugal
References
Rui Nunes Abril 2008: paragénese do granito e dos filões de Sn-W das minas de Regoufe tal como foi definida na tese de doutoramento de Slujk (1963)
Sant’Ovaia, Helena, Cláudia Cruz, Alexandra Guedes, Helena Ribeiro, Patrícia Santos, Sónia Pereira, Jorge Espinha Marques, Maria dos Anjos Ribeiro, Catarina Mansilha, Helena Cristina Brites Martins, Bruno Valentim, Joana Torres, Ilda Abreu, Fernando Noronha, and Deolinda Flores. (2023) "Contamination Fingerprints in an Inactive W (Sn) Mine: The Regoufe Mine Study Case (Northern Portugal)" Minerals 13, no. 4: 497. https://doi.org/10.3390/min13040497
 
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