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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Tantalite-(Mn) from
Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK


Locality type:Quarry
Classification
Species:Tantalite-(Mn)
Formula:Mn2+Ta2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tantalite-(Mn) data
Locality Data:Click here to view Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:13713
Long-form Identifier:1:3:13713:7
GUID (UUID V4):0
References
Knorring, Oleg von, Condliffe, Eric (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48 (348) 443-448 doi:10.1180/minmag.1984.048.348.16
Ryback, George, Nawaz, R., Farley, E. (1988) Seventh supplementary list of British Isles minerals (Irish) Mineralogical Magazine, 52 (365) 267-274
 
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