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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Manganogel from
Friedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany


Locality type:Mine
Classification
Species:'Manganogel' (not an IMA approved species)
Formula:~MnO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Manganogel data
Locality Data:Click here to view Friedrichssegen Mine, Friedrichssegen, Lahnstein, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:617384
Long-form Identifier:1:3:617384:5
GUID (UUID V4):0
Nearest other occurrences of Manganogel
32.4km (20.1 miles) ⓘKunkskopf quarry, Wassenach, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
41.5km (25.8 miles) ⓘHannebacher Ley, Hannebach, Spessart, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
63.6km (39.5 miles) ⓘLöhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
88.1km (54.7 miles) ⓘWohlfahrt Mine, Rescheid, Hellenthal, Euskirchen, Cologne, North Rhine-Westphalia, Germany
90.0km (55.9 miles) ⓘSchwalenbach Mine, Kamberg, Hellenthal, Euskirchen, Cologne, North Rhine-Westphalia, Germany
References
58.
Möhn, G.; Frohwein, J.; Blaß, G. (2009) Neue Mineralfunde von der Grube Friedrichssegen bei Bad Ems. Lapis, 34 (5). 35-40; 58
 
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