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


Locality type:Lake
Classification
Species:Palygorskite
Formula:◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Palygorskite data
Locality Data:Click here to view Caballo Alba hyperalkaline playa-lake, Segovia, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1675708
Long-form Identifier:1:3:1675708:4
GUID (UUID V4):0
Nearest other occurrences of Palygorskite
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
58.2km (36.2 miles) ⓘLas Suertes quarry, Vegas de Matute, Segovia, Castile and Leon, Spain
61.3km (38.1 miles) ⓘLos Ángeles de San Rafael, El Espinar, Segovia, Castile and Leon, Spain
95.0km (59.1 miles) ⓘMiocene outcrops, Alconada de Maderuelo, Segovia, Castile and Leon, 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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