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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Brochantite from
Castor Mine, Loope, Engelskirchen, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany


Locality type:Mine
Classification
Species:Brochantite
Formula:Cu4(SO4)(OH)6
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Malachite2
Goethite2
Data
Mineral Data:Click here to view Brochantite data
Locality Data:Click here to view Castor Mine, Loope, Engelskirchen, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:104341
Long-form Identifier:1:3:104341:9
GUID (UUID V4):0
Nearest other occurrences of Brochantite
5.4km (3.4 miles) ⓘSilberkaule Mine, Heckhaus, Engelskirchen, Oberbergischer Kreis, Cologne, North Rhine-Westphalia, Germany
11.6km (7.2 miles) ⓘLeibnitz-Dante Mine, Hoffnungsthal, Rösrath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany
27.2km (16.9 miles) ⓘSilberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
40.8km (25.4 miles) ⓘClemenslust Mine, Linz am Rhein, Linz am Rhein, Neuwied, Rhineland-Palatinate, Germany
40.9km (25.4 miles) ⓘPrangenhaus quarry, Wülfrath, Mettmann, Düsseldorf, North Rhine-Westphalia, Germany
40.9km (25.4 miles) ⓘVirneberg Mine, Rheinbreitbach, Unkel, Neuwied, Rhineland-Palatinate, Germany
41.6km (25.8 miles) ⓘHohmannsburg Mine (Clemens adit), Neviges, Velbert, Mettmann, Düsseldorf, North Rhine-Westphalia, Germany
41.6km (25.9 miles) ⓘFürst Moritz Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
41.8km (26.0 miles) ⓘFischbacher Werk Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
44.0km (27.4 miles) ⓘVictoria Mine, Littfeld, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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