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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Quartz from
San Francisco Mine, Horcajuelo de la Sierra, Community of Madrid, Spain


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Acanthite4
Graphite3
Siderite2
Freibergite Subgroup2
Arsenopyrite1
Pyrargyrite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view San Francisco Mine, Horcajuelo de la Sierra, Community of Madrid, Spain
Data Identifiers
Mindat Occurrence Record ID:758814
Long-form Identifier:1:3:758814:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
2.1km (1.3 miles) ⓘLa Garita Stream, Horcajuelo de la Sierra, Community of Madrid, Spain
4.4km (2.7 miles) ⓘConchita Mine, Montejo de la Sierra, Community of Madrid, Spain
17.1km (10.6 miles) ⓘEl Zahurdón, El Cardoso de la Sierra, Guadalajara, Castile-La Mancha, Spain
17.2km (10.7 miles) ⓘChilena Mine, El Cuadrón, Garganta de los Montes, Community of Madrid, Spain
19.5km (12.1 miles) ⓘLanchar del Molino Quarry, Sieteiglesias, Loyozuela-Navas-Sieteiglesias, Community of Madrid, Spain
20.7km (12.9 miles) ⓘEl Atazar Reservoir, El Berrueco, Community of Madrid, Spain
22.3km (13.9 miles) ⓘCollado de La Tejera (La Cabrera pluton), La Cabrera, Community of Madrid, Spain
22.5km (14.0 miles) ⓘLa Cabrera pluton, La Cabrera, Community of Madrid, Spain
25.8km (16.0 miles) ⓘIsabel Quarry (La Saludadora Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
27.6km (17.1 miles) ⓘCuesta de la Plata Mine (Mónica Mine; Indiana Mine), Bustarviejo, Community of Madrid, Spain
References
Angel Ortiz Maellas specimen
 
and/or  
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