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-(Mn)-Tantalite-(Mn) Series from
Fiakarandava pegmatite, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar


09283580017370871921785.jpg
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Fiakarandava pegmatite, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar
09283580017370871921785.jpg
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Fiakarandava pegmatite, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar
05981670017272005529096.jpg
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Fiakarandava pegmatite, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar
Locality type:Pegmatite
Classification
Species:'Columbite-(Mn)-Tantalite-(Mn) Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Montmorillonite1
K Feldspar1
Data
Mineral Data:Click here to view Columbite-(Mn)-Tantalite-(Mn) Series data
Locality Data:Click here to view Fiakarandava pegmatite, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar
Data Identifiers
Mindat Occurrence Record ID:758128
Long-form Identifier:1:3:758128:1
GUID (UUID V4):0
References
Knut Edvard Larsen collection and photo
 
and/or  
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