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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Pyrite from
Ribeiro da Igreja Mine, Alfena, Valongo, Porto, Portugal


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Ribeiro da Igreja Mine, Alfena, Valongo, Porto, Portugal
Data Identifiers
Mindat Occurrence Record ID:489559
Long-form Identifier:1:3:489559:6
GUID (UUID V4):0
Nearest other occurrences of Pyrite
1.6km (1.0 miles) ⓘSerra de Santa Justa Mines, Valongo, Valongo, Porto, Portugal
3.6km (2.2 miles) ⓘSerra de Pias Mines, Valongo, Valongo, Porto, Portugal
8.0km (5.0 miles) ⓘRebordosa Mine, Rebordosa, Paredes, Porto, Portugal
9.1km (5.6 miles) ⓘMidões Mine (Gens - Midões and Covelo), Covelo, Gondomar, Porto, Portugal
10.4km (6.5 miles) ⓘCastromil Mines, Castromil, Sobreira, Paredes, Porto, Portugal
13.3km (8.3 miles) ⓘFonte da Quinta do Guardal de Cima Mine, Mafamude e Vilar do Paraíso, Vila Nova de Gaia, Porto, Portugal
13.8km (8.6 miles) ⓘRibeiro da Paradela Mine, Lagares e Figueira, Penafiel, Porto, Portugal
14.1km (8.7 miles) ⓘBanjas Mines, Melres, Gondomar, Porto, Portugal
14.1km (8.7 miles) ⓘBanjas Mines, Sobreira, Paredes, Porto, Portugal
14.3km (8.9 miles) ⓘAlto do Sobrido Mine, Melres, Gondomar, Porto, Portugal
References
Nuno Afonso collection
 
and/or  
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