Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Pennantite from
Čierna baňa, Čučma, Rožňava District, Košice Region, Slovakia


Locality type:Deposit
Classification
Species:Pennantite
Formula:Mn52+Al(AlSi3O10)(OH)8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pennantite data
Locality Data:Click here to view Čierna baňa, Čučma, Rožňava District, Košice Region, Slovakia
Data Identifiers
Mindat Occurrence Record ID:1813337
Long-form Identifier:1:3:1813337:6
GUID (UUID V4):0
References
Radvanec M. and Gonda S. (2020) Successive formation of Fe and Mn skarns in the Čučma locality (Gemeric unit, W. Carpathians): from metasomatic stage through the amphibolite facies overprint with Ti-rich tephroite to retrograde stilpnomelane-chlorite zone. Mineralia Slovaca, 52, 103-132.
 
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