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
Isabel Quarry (La Saludadora Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain


02064350017368173138267.jpg
Orthoclase

Isabel Quarry, Valdemanco, Community of Madrid, Spain
02064350017368173138267.jpg
Orthoclase

Isabel Quarry, Valdemanco, Community of Madrid, Spain
05840770017272306146405.jpg
Orthoclase

Isabel Quarry, Valdemanco, Community of Madrid, Spain
Locality type:Quarry
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Comments:Microcline is the most common structural state of potassium feldspars in granite.
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified, Polarised-light microscopy
XRD
Confirmation Details:Where Tested and Reference ID: Collection of Geominero Museum, Madrid
Associated Minerals Based on Photo Data:
Quartz14
- var Smoky Quartz2
Prehnite12
Clinozoisite6
Epidote2
Bavenite2
Calcite2
Arsenopyrite1
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Isabel Quarry (La Saludadora Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
Data Identifiers
Mindat Occurrence Record ID:366292
Long-form Identifier:1:3:366292:2
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
2.2km (1.4 miles) ⓘPeña Mojada Quarry (Los Alisos E Quarry; La Cabrera pluton), Valdemanco, Community of Madrid, Spain
2.5km (1.5 miles) ⓘEl Madroñal Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
2.6km (1.6 miles) ⓘLos Alisos W Quarry (La Cabrera pluton), Valdemanco, Community of Madrid, Spain
3.6km (2.3 miles) ⓘLa Cabrera pluton, La Cabrera, Community of Madrid, Spain
4.8km (3.0 miles) ⓘCollado de La Tejera (La Cabrera pluton), La Cabrera, Community of Madrid, Spain
7.7km (4.8 miles) ⓘLanchar del Molino Quarry, Sieteiglesias, Loyozuela-Navas-Sieteiglesias, Community of Madrid, Spain
9.0km (5.6 miles) ⓘEl Atazar Reservoir, El Berrueco, Community of Madrid, Spain
32.0km (19.9 miles) ⓘLas Cabañuelas Mine (El Canchal Mine), Hoyo de Manzanares, Community of Madrid, Spain
48.5km (30.2 miles) ⓘOtero de Herreros area, Segovia, Castile and Leon, Spain
55.1km (34.2 miles) ⓘLa Machota Baja outcrop, Zarzalejo, Community of Madrid, Spain
References
Tánago, José González del, Lozano, Rafael Pablo, Larios, Alfredo, Iglesia, Angel La (2012) Stokesite crystals from La Cabrera, Madrid, Spain. The Mineralogical Record, 43 (4) 499-508
 
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