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


09911090017369460538339.jpg
Cassiterite

Valdeflórez, Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain
09911090017369460538339.jpg
Cassiterite

Valdeflórez, Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain
05857630017272298012981.jpg
Cassiterite

Valdeflórez, Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain
Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite 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:637623
Long-form Identifier:1:3:637623:9
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
8.6km (5.3 miles) ⓘTrasquilón, Cáceres, Cáceres, Extremadura, Spain
24.1km (15.0 miles) ⓘLas Navas, Tajo-Salor, 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
51.0km (31.7 miles) ⓘQuartz veins, Madroñera, Cáceres, 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) ⓘSierra de San Cristóbal, Logrosán, Cáceres, Extremadura, Spain
84.3km (52.4 miles) ⓘTorrecilla de los Ángeles mine, Villasbuenas de Gata, Cáceres, Extremadura, Spain
92.3km (57.3 miles) ⓘGranite outcrop, União de Freguesias de Monsanto e Idanha-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
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
Weibel, Max (1956) Amblygonite, cassiterite, and associated minerals from Caceres, Western Spain. American Mineralogist, 41 (1-2). p.41-48.
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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