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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Calcite from
Unnamed clay quarry, Segovia, Castile and Leon, Spain


Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Unnamed clay quarry, Segovia, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1675840
Long-form Identifier:1:3:1675840:9
GUID (UUID V4):0
Nearest other occurrences of Calcite
1.2km (0.8 miles) ⓘCaballo Alba hyperalkaline playa-lake, Segovia, Castile and Leon, Spain
5.6km (3.5 miles) ⓘLas Eras, Segovia, Castile and Leon, Spain
6.4km (4.0 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
89.5km (55.6 miles) ⓘEl Madroñal Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
90.5km (56.2 miles) ⓘLos Alisos W Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
90.7km (56.3 miles) ⓘIsabel Quarry (La Saludadora Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
91.2km (56.7 miles) ⓘPeña Mojada Quarry (Los Alisos E Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
91.5km (56.9 miles) ⓘLa Cabrera pluton, La Cabrera, Community of Madrid, Spain
96.5km (60.0 miles) ⓘCaleriza Quarry (La Paredona Quarry), Venturada, 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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