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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Ferrimolybdite from
East pit, Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA


Classification
Species:Ferrimolybdite
Formula:Fe2(MoO4)3 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ferrimolybdite data
Locality Data:Click here to view East pit, Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:224591
Long-form Identifier:1:3:224591:1
GUID (UUID V4):0
References
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.220
 
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