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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Hollandite from
Nayéga manganese deposit, Nayéga, Kpendjal Prefecture, Savanes Region, Togo


Locality type:Deposit
Classification
Species:Hollandite
Formula:Ba(Mn64+Mn23+)O16
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hollandite data
Locality Data:Click here to view Nayéga manganese deposit, Nayéga, Kpendjal Prefecture, Savanes Region, Togo
Data Identifiers
Mindat Occurrence Record ID:922326
Long-form Identifier:1:3:922326:4
GUID (UUID V4):0
References
Mémoire No 2, 38 pages.
Collart, J., Ouassane, I., and Sylvain, I. P. (1985) : Notice explicative de la carte géologique au 1/200 000: feuille de Dapaong.- DGMG et BNRM 1ere édition
 
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