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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Muscovite from
Valdeflórez (Valdeflores; San José de Valdeflores Mine; San José de Valdeflórez Mine), Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Valdeflórez (Valdeflores; San José de Valdeflores Mine; San José de Valdeflórez Mine), Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain
Data Identifiers
Mindat Occurrence Record ID:637622
Long-form Identifier:1:3:637622:2
GUID (UUID V4):0
Nearest other occurrences of Muscovite
8.6km (5.3 miles) ⓘTrasquilón, Cáceres, Cáceres, Extremadura, Spain
47.9km (29.7 miles) ⓘLa Parrilla Mine (Adelaida open pit mine), Almoharín, Cáceres, Extremadura, Spain
49.8km (30.9 miles) ⓘLa Parilla Mine, Miajadas, Badajoz, Extremadura, Spain
67.5km (41.9 miles) ⓘCerro Queimado, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
68.4km (42.5 miles) ⓘSegura Mines (Segura mining field), União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
73.2km (45.5 miles) ⓘCevadais occurrence, Campo Maior, Portalegre, Portugal
73.2km (45.5 miles) ⓘSierra de San Cristóbal, Logrosán, Cáceres, Extremadura, Spain
78.4km (48.7 miles) ⓘAlba 1 Quarry, Oliva de Plasencia, Cáceres, Extremadura, Spain
81.1km (50.4 miles) ⓘCastañar Cave, Castañar de Ibor, Cáceres, Extremadura, Spain
86.2km (53.6 miles) ⓘEl Lobo Mine, Quintana de la Serena, Badajoz, Extremadura, Spain
References
Weibel, Max (1954) Zur Lagerstättenkunde Westspaniens. Überblick über die Petrographie und mineralogische Beschreibung der Lagerstätten Zentral-Estremaduras. Heidelberger Beiträge zur Mineralogie und Petrographie, 4 (5). 379-411 doi:10.1007/bf01136985
Borrajo, Iñigo; Tornos, Fernando; Stein, Holly; Hanchar, John M. (2024) Geochronology and decoupling controls of Sn-(Ta-Li) and W-(Sn) mineralization in the Iberian Variscan Massif, Spain and Portugal. Ore Geology Reviews, 173. 106253 doi:10.1016/j.oregeorev.2024.106253
 
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