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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Retzian-(La) from
Gonzen Mine, Sargans, Sarganserland, St. Gallen, Switzerland


Locality type:Mine
Classification
Species:Retzian-(La)
Formula:Mn22+La(AsO4)(OH)4
Habit:mm-sized grains with greasy lustre
Colour:orange
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Alleghanyite
Data
Mineral Data:Click here to view Retzian-(La) data
Locality Data:Click here to view Gonzen Mine, Sargans, Sarganserland, St. Gallen, Switzerland
Data Identifiers
Mindat Occurrence Record ID:388151
Long-form Identifier:1:3:388151:4
GUID (UUID V4):0
References
Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.347
Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).
 
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