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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Naumannite from
Neves-Corvo Mine, Santa Bárbara de Padrões, Castro Verde, Beja, Portugal


Locality type:Mine
Classification
Species:Naumannite
Formula:Ag2Se
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Naumannite data
Locality Data:Click here to view Neves-Corvo Mine, Santa Bárbara de Padrões, Castro Verde, Beja, Portugal
Data Identifiers
Mindat Occurrence Record ID:642832
Long-form Identifier:1:3:642832:7
GUID (UUID V4):0
References
Cabri, L. J., Gaspar, O. C., Lastra, R., McMahon, G. (1998) Distribution of gold in tin-rich samples from the Corvo Orebody, Portugal. The Canadian Mineralogist, 36 (5). 1347-1360
Relvas, Jorge M., Tassinari, Colombo C., Munhá, José, Barriga, Fernando J. (2001) Multiple sources for ore-forming fluids in the Neves Corvo VHMS Deposit of the Iberian Pyrite Belt (Portugal): strontium, neodymium and lead isotope evidence. Mineralium Deposita, 36 (5) 416-427 doi:10.1007/s001260100168
 
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