Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:CRYPTOMELANE
Formula:K(Mn4+,Mn2+)8O16
Crystal System:Monoclinic pseudo Quadratic (Tetragonal)
Strunz Nr:4/D.08-20
Group:Coronadite Group
References:HB3 (1997)
Type Locality:Chindwara, India

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