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) from
Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA


08358300017272015814282.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
01577220017364671955342.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
08358300017272015814282.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
01577220017364671955342.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
08358300017272015814282.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
01577220017364671955342.jpg
Columbite-(Fe)

Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Locality type:Mine
Classification
Species:Columbite-(Fe)
Formula:Fe2+Nb2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Columbite-(Fe) data
Locality Data:Click here to view Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:646013
Long-form Identifier:1:3:646013:6
GUID (UUID V4):0
Nearest other occurrences of Columbite-(Fe)
4.4km (2.7 miles) ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
5.2km (3.2 miles) ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
References
various added photos
 
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