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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Cornwallite from
Reichensteinerberg Mine, Puderbach, Puderbach, Neuwied, Rhineland-Palatinate, Germany


Locality type:Mine
Classification
Species:Cornwallite
Formula:Cu5(AsO4)2(OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cornwallite data
Locality Data:Click here to view Reichensteinerberg Mine, Puderbach, Puderbach, Neuwied, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:77164
Long-form Identifier:1:3:77164:9
GUID (UUID V4):0
Nearest other occurrences of Cornwallite
26.0km (16.1 miles) ⓘKäusersteimel Mine, Kausen, Betzdorf-Gebhardshain, Altenkirchen, Rhineland-Palatinate, Germany
36.6km (22.7 miles) ⓘEisenzecher Zug mine, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
45.5km (28.3 miles) ⓘLeibnitz-Dante Mine, Hoffnungsthal, Rösrath, Rheinisch-Bergischer Kreis, Cologne, North Rhine-Westphalia, Germany
51.6km (32.1 miles) ⓘWildermann Mine, Ferndorf, Kreuztal, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
55.2km (34.3 miles) ⓘBangertsheck Mine, Weinbach, Limburg-Weilburg, Giessen Region, Hesse, Germany
56.1km (34.9 miles) ⓘMercur Mine (Merkur Mine), Silberg, Kirchhundem, Olpe, Arnsberg, North Rhine-Westphalia, Germany
References
Lapis, 9 (9), 31-38.
 
and/or  
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