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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Precious Opal from
Buenos Aires Mine, Cuerámaro, Cuerámaro Municipality, Guanajuato, Mexico


Locality type:Mine
Classification
Species:Opal var: Precious Opal
Formula:SiO2 · nH2O
Comments:Noted for occurrence of precious cherry opal.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Precious Opal data
Locality Data:Click here to view Buenos Aires Mine, Cuerámaro, Cuerámaro Municipality, Guanajuato, Mexico
Data Identifiers
Mindat Occurrence Record ID:50666
Long-form Identifier:1:3:50666:5
GUID (UUID V4):0
References
Panczner, William D. (1987) Minerals of Mexico. Van Nostrand Reinhold Company Inc. 459 pp.p.286
 
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