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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Valentinite from
Grüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany


Locality type:Mine
Classification
Species:Valentinite
Formula:Sb2O3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Valentinite data
Locality Data:Click here to view Grüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:92524
Long-form Identifier:1:3:92524:0
GUID (UUID V4):0
Nearest other occurrences of Valentinite
9.7km (6.0 miles) ⓘFischbacher Werk Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
10.3km (6.4 miles) ⓘConcordia Mine, Niederfischbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
11.0km (6.8 miles) ⓘBrüderbund Mine, Kohlenbach Valley, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
27.8km (17.3 miles) ⓘApollo Mine, Raubach, Puderbach, Neuwied, Rhineland-Palatinate, Germany
31.3km (19.5 miles) ⓘSilberwiese mine, Oberlahr, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
31.9km (19.8 miles) ⓘLouise Mine, Bürdenbach, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
33.6km (20.9 miles) ⓘGeorg Mine, Willroth, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
52.5km (32.6 miles) ⓘFriedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
69.1km (42.9 miles) ⓘAlexander Mine, Meschede, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
70.3km (43.7 miles) ⓘGenna zinc smelter slag locality, Helmke quarry nature reserve, Letmathe, Iserlohn, Märkischer Kreis, Arnsberg, North Rhine-Westphalia, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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