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 (Hg(I) Sulphate) from
Idria Mine (Idrija Mine), Idrija, Slovenia


Locality type:Mine
Classification
Species:'Unnamed (Hg(I) Sulphate)' (not an IMA approved species)
Formula:Hg2SO4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Unnamed (Hg(I) Sulphate) data
Locality Data:Click here to view Idria Mine (Idrija Mine), Idrija, Slovenia
Data Identifiers
Mindat Occurrence Record ID:666703
Long-form Identifier:1:3:666703:0
GUID (UUID V4):0
References
Seyfriedsberger, G. (1890) Ueber Quecksilbersulfate aus dem Mauerwerke eines Idrianer Ofens. Zeitschrift für Kristallographie, 17 (1-6). p.433-444. doi:10.1524/zkri.1890.17.1.433
 
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