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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Marcasite from
Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
Data Identifiers
Mindat Occurrence Record ID:219317
Long-form Identifier:1:3:219317:5
GUID (UUID V4):0
Nearest other occurrences of Marcasite
0.8km (0.5 miles) ⓘCerdeirinha Mine, Arga de Baixo, Caminha, Viana do Castelo, Portugal
5.9km (3.7 miles) ⓘLagoa Mine (Cerquido Mine), Estorãos, Ponte de Lima, Viana do Castelo, Portugal
6.4km (4.0 miles) ⓘCavalinho Mine, Estorãos, Ponte de Lima, Viana do Castelo, Portugal
34.6km (21.5 miles) ⓘPorriño quarries, Porriño, Pontevedra, Galicia, Spain
40.2km (25.0 miles) ⓘTibães Mine, Mire de Tibães, Braga, Braga, Portugal
64.8km (40.3 miles) ⓘBorralha Mines, Salto, Montalegre, Vila Real, Portugal
85.1km (52.9 miles) ⓘMonte de Entre-Portelas Mine (S. João Mine; Adoria Mine), Cerva e Limões, Ribeira de Pena, Vila Real, Portugal
93.1km (57.9 miles) ⓘLimarinho deposit, Ardãos e Bobadela, Boticas, Vila Real, Portugal
98.5km (61.2 miles) ⓘTerramonte Mine, Raiva, Castelo de Paiva, Aveiro, Portugal
References
 
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