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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Serpentine Subgroup from
Neumühlberg quarry (Steinsberg quarry), Biebrich, Aar-Einrich, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany


Locality type:Quarry
Classification
Species:'Serpentine Subgroup' (not an IMA approved species)
Formula:D3[Si2O5](OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Serpentine Subgroup data
Locality Data:Click here to view Neumühlberg quarry (Steinsberg quarry), Biebrich, Aar-Einrich, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:174705
Long-form Identifier:1:3:174705:8
GUID (UUID V4):0
Nearest other occurrences of Serpentine Subgroup
56.7km (35.2 miles) ⓘBrüderbund Mine, Kohlenbach Valley, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
65.2km (40.5 miles) ⓘBottenhorn, Bad Endbach, Marburg-Biedenkopf, Giessen Region, Hesse, Germany
76.9km (47.8 miles) ⓘNieder-Ramstadt, Mühltal, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
78.3km (48.6 miles) ⓘRoßberg Quarry, Roßdorf, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
References
Weiß, Stefan (1990) Mineralfundstellen Atlas Deutschland West. Christian Weise Verlag, Munich, Germany. 320pp.
 
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