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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Kaolinite from
Caballo Alba hyperalkaline playa-lake, Segovia, Castile and Leon, Spain


Locality type:Lake
Classification
Species:Kaolinite
Formula:Al2(Si2O5)(OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Kaolinite data
Locality Data:Click here to view Caballo Alba hyperalkaline playa-lake, Segovia, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1675705
Long-form Identifier:1:3:1675705:7
GUID (UUID V4):0
Nearest other occurrences of Kaolinite
1.2km (0.8 miles) ⓘUnnamed clay quarry, Segovia, Castile and Leon, Spain
5.3km (3.3 miles) ⓘLas Eras, Segovia, Castile and Leon, Spain
5.4km (3.4 miles) ⓘBodón Blanco hyperalkaline playa-lake, Segovia, Castile and Leon, Spain
82.6km (51.3 miles) ⓘArroyo de la Yedra, Manzanares el Real, Community of Madrid, Spain
References
Buey, Pablo, Sanz-Montero, María Esther, Rodríguez-Aranda, Juan Pablo, Sánchez-Román, Mónica, Nieto, Fernando (2025) The Miocene Source-to-Sink Evolution of Fibrous Clay Minerals in Hyperalkaline Playa-Lakes, Duero Basin (Central Spain). Minerals, 15 (1). doi:10.3390/min15010050
 
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