Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Plagioclase from
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany


02901990017271925895633.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
08554880017271999835903.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
06142340017362858038900.jpg
Oligoclase

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
02901990017271925895633.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
04572020017730538281463.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
06142340017362858038900.jpg
Oligoclase

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
02901990017271925895633.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
08554880017271999835903.jpg
Anorthite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
06142340017362858038900.jpg
Oligoclase

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Locality type:Quarry
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:76745
Long-form Identifier:1:3:76745:1
GUID (UUID V4):0
Localities for Plagioclase in this Region
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Nearest other occurrences of Plagioclase
3.0km (1.8 miles) ⓘAuf der Hell, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.1km (2.6 miles) ⓘThelenberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.3km (2.7 miles) ⓘBasalt quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.2km (3.2 miles) ⓘPumice quarries, Wingertsberg, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.8km (3.6 miles) ⓘIn den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
9.7km (6.0 miles) ⓘNickenicher Weinberg, Nickenich, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
11.3km (7.0 miles) ⓘGranulite occurrence, Engeln, Kempenich, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
21.1km (13.1 miles) ⓘSelberg, Quiddelbach, Adenau, Ahrweiler, Rhineland-Palatinate, Germany
34.0km (21.1 miles) ⓘDreiser Weiher, Dreis, Dreis-Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
36.9km (22.9 miles) ⓘLöhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
References
Lapis, 15 (5), 9-36.
 
and/or  
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