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
San Nicolás Mine, Valle de la Serena, Badajoz, Extremadura, Spain


09259500017370295299917.jpg
Cassiterite, etc.

San Nicolás Mine, Valle de la Serena, Badajoz, Extremadura, Spain
09259500017370295299917.jpg
Cassiterite, etc.

San Nicolás Mine, Valle de la Serena, Badajoz, Extremadura, Spain
05876600017272052596876.jpg
Cassiterite, etc.

San Nicolás Mine, Valle de la Serena, Badajoz, Extremadura, Spain
Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Muscovite1
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view San Nicolás Mine, Valle de la Serena, Badajoz, Extremadura, Spain
Data Identifiers
Mindat Occurrence Record ID:775997
Long-form Identifier:1:3:775997:0
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
48.9km (30.4 miles) ⓘLa Parrilla Mine (Adelaida open pit mine), Almoharín, Cáceres, Extremadura, Spain
50.8km (31.5 miles) ⓘOropesa Tin Project, Córdoba, Andalusia, Spain
55.1km (34.2 miles) ⓘLa Parilla Mine, Miajadas, Badajoz, Extremadura, Spain
78.4km (48.7 miles) ⓘSierra de San Cristóbal, Logrosán, Cáceres, Extremadura, Spain
85.5km (53.1 miles) ⓘQuartz veins, Madroñera, Cáceres, Extremadura, Spain
91.7km (57.0 miles) ⓘTrasquilón, Cáceres, Cáceres, Extremadura, Spain
96.7km (60.1 miles) ⓘValdeflórez (Valdeflores; San José de Valdeflores Mine; San José de Valdeflórez Mine), Sierra de la Mosca, Cáceres, Cáceres, Extremadura, Spain
References
Calvo Rebollar, Miguel. (2009). Minerales y Minas de España. Vol. IV. Óxidos e hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 751 págs.
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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