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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Orthoclase from
Otero de Herreros area, Segovia, Castile and Leon, Spain


Locality type:Deposit
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Otero de Herreros area, Segovia, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1992732
Long-form Identifier:1:3:1992732:9
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
31.3km (19.4 miles) ⓘLa Machota Baja outcrop, Zarzalejo, Community of Madrid, Spain
36.2km (22.5 miles) ⓘLas Cabañuelas Mine (El Canchal Mine), Hoyo de Manzanares, Community of Madrid, Spain
46.4km (28.8 miles) ⓘEl Madroñal Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
47.0km (29.2 miles) ⓘLos Alisos W Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
47.8km (29.7 miles) ⓘPeña Mojada Quarry (Los Alisos E Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
48.5km (30.2 miles) ⓘIsabel Quarry (La Saludadora Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
51.3km (31.8 miles) ⓘLa Cabrera pluton, La Cabrera, Community of Madrid, Spain
52.9km (32.8 miles) ⓘCollado de La Tejera (La Cabrera pluton), La Cabrera, Community of Madrid, Spain
54.8km (34.1 miles) ⓘLanchar del Molino Quarry, Sieteiglesias, Loyozuela-Navas-Sieteiglesias, Community of Madrid, Spain
57.0km (35.4 miles) ⓘEl Atazar Reservoir, El Berrueco, Community of Madrid, Spain
References
Mota, Alexandra; Sant’Ovaia, Helena; Fádon, Oscar; Noronha, Fernando (2026) The Geochemistry of Granites Associated with W-Sn Deposits of North and Central Portugal and Castilla-León in Spain. Minerals, 16 (8). doi:10.3390/min16080823
 
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