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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Delvauxite from
Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA


Locality type:Mine
Classification
Species:Delvauxite
Formula:CaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Delvauxite data
Locality Data:Click here to view Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA
Data Identifiers
Mindat Occurrence Record ID:128191
Long-form Identifier:1:3:128191:0
GUID (UUID V4):0
References
Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
 
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