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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Calcite from
Büschhof Quarry (Schretzmair Quarry), Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany


02289020017272723624235.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
01266210017272099703978.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
03339470017661945039909.jpg
Calcite

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
09051700017272723592834.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
01266210017272099703978.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
04128470017658334822964.jpg
Calcite

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
02289020017272723624235.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
01266210017272099703978.jpg
Calcite, etc.

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
03339470017661945039909.jpg
Calcite

Büschhof Quarry, Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chalcopyrite8
Dolomite8
Sphalerite5
Pyrite3
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Büschhof Quarry (Schretzmair Quarry), Wirtenbach, Nümbrecht, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:345770
Long-form Identifier:1:3:345770:2
GUID (UUID V4):0
Nearest other occurrences of Calcite
13.2km (8.2 miles) ⓘSilberkaule Mine, Heckhaus, Engelskirchen, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
18.0km (11.2 miles) ⓘWingertshardt Mine, Voßwinkel, Hövels, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
18.7km (11.6 miles) ⓘEupel Mine (incl. Glücksstern Mine; Rasselskaute Mine), Niederhövels, Hövels, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
20.0km (12.4 miles) ⓘFriedrich Mine, Steckenstein, Mittelhof, Wissen, Altenkirchen, Rhineland-Palatinate, Germany
20.2km (12.6 miles) ⓘGlücksbrunnen Mine, Hahnhof, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
21.7km (13.5 miles) ⓘPetersbach Mine, Eichelhardt, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
23.2km (14.4 miles) ⓘConcordia Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
23.6km (14.7 miles) ⓘFischbacher Werk Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
25.4km (15.8 miles) ⓘLüderich Mine, Altenbrück, Steinenbrück, Overath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany
27.0km (16.8 miles) ⓘPius Mine, Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
References
Lapis 2005(30), 9
 
and/or  
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