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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Unnamed (NH4-Mn Chloride-Hydrate) from
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany


00749830017368132561316.jpg
Unnamed (NH4-Mn Chloride-Hydrate), etc.

Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany
00749830017368132561316.jpg
Unnamed (NH4-Mn Chloride-Hydrate), etc.

Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany
03763610017271952301634.jpg
Unnamed (NH4-Mn Chloride-Hydrate), etc.

Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany
Locality type:Colliery
Classification
Species:'Unnamed (NH4-Mn Chloride-Hydrate)' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Kremersite1
Data
Mineral Data:Click here to view Unnamed (NH4-Mn Chloride-Hydrate) data
Locality Data:Click here to view Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, Germany
Data Identifiers
Mindat Occurrence Record ID:960494
Long-form Identifier:1:3:960494:0
GUID (UUID V4):0
References
Witzke, T., de Wit, F., Kolitsch, U., Blaß, G. (2015) Mineralogy of the Burning Anna I Coal Mine Dump, Alsdorf, Germany. In Coal and Peat Fires: A Global Perspective- Case Studies – Coal Fires Vol. 3. Elsevier. p.203-240. doi:10.1016/C2010-0-68844-4
 
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