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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Columbite-(Fe)-Columbite-(Mn) Series from
Ben Murphy Mica Mine, Scaggsville, Howard County, Maryland, USA


Locality type:Mine
Classification
Species:'Columbite-(Fe)-Columbite-(Mn) Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Columbite-(Fe)-Columbite-(Mn) Series data
Locality Data:Click here to view Ben Murphy Mica Mine, Scaggsville, Howard County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:202005
Long-form Identifier:1:3:202005:1
GUID (UUID V4):0
References
Mines of the Washington D.C Area
 
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