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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Posnjakite from
Slag dumps, Sitio do Cobre Mine, Vila Velha de Ródão, Vila Velha de Ródão, Castelo Branco, Portugal


Locality type:Slag Locality
Classification
Species:Posnjakite
Formula:Cu4(SO4)(OH)6 · H2O
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Raman Spectroscopy
Data
Mineral Data:Click here to view Posnjakite data
Locality Data:Click here to view Slag dumps, Sitio do Cobre Mine, Vila Velha de Ródão, Vila Velha de Ródão, Castelo Branco, Portugal
Data Identifiers
Mindat Occurrence Record ID:1488884
Long-form Identifier:1:3:1488884:9
GUID (UUID V4):0
References
Alves, Pedro (n.d.) Personal communication.
 
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