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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Hydrocalumite from
Mayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany


Locality type:Mining Field
Classification
Species:Hydrocalumite
Formula:Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hydrocalumite data
Locality Data:Click here to view Mayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:618173
Long-form Identifier:1:3:618173:4
GUID (UUID V4):0
Nearest other occurrences of Hydrocalumite
0.8km (0.5 miles) ⓘXenolith CS-008 (Bellbergite type-locality), Seekante, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.0km (1.3 miles) ⓘCaspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
7.8km (4.8 miles) ⓘRothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
37.0km (23.0 miles) ⓘFeuerberg, Hohenfels-Essingen, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
37.0km (23.0 miles) ⓘEmmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
68.2km (42.3 miles) ⓘFriedrich-Wilhelm Mine, Biersdorf, Daaden, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
References
Hentschel, G. (1961) Seltene Mineralneubildungen in einem Kalksteineinschluß der Lava des Ettringer Bellerberges. Fortschritte der Mineralogie: 39: 345.
 
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