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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Cyrilovite from
Chãs Mines, Portugal


06184290017636550831043.jpg
Cyrilovite

Chãs Mines, Portugal
06184290017636550831043.jpg
Cyrilovite

Chãs Mines, Portugal
05977470017636550842836.jpg
Cyrilovite

Chãs Mines, Portugal
Locality type:Mine
Classification
Species:Cyrilovite
Formula:NaFe33+(PO4)2(OH)4 · 2H2O
Formation:Secondary
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Cyrilovite data
Locality Data:Click here to view Chãs Mines, Portugal
Data Identifiers
Mindat Occurrence Record ID:1850990
Long-form Identifier:1:3:1850990:4
GUID (UUID V4):0
References
Henk Smeets' mineral collection - November 2025Identified by Rui Nunes: Visual Identification
 
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