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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Heterophyllite from
Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


02134710017271929632658.jpg
Heterophyllite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
02134710017271929632658.jpg
Heterophyllite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
02134710017271929632658.jpg
Heterophyllite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
Locality type:Pegmatite Field
Classification
Species:Biotite var: Heterophyllite
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heterophyllite data
Locality Data:Click here to view Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:911629
Long-form Identifier:1:3:911629:0
GUID (UUID V4):0
References
Recursos Minerais Metálicos, Jazigos Pegmatíticos, Departamento de Geologia da Faculdade de Ciências da Universidade de Lisboa, Lisboa, 2006.
 
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