Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:EKMANITE (?)
Formula:(Fe2+,Mg,Mn,Fe3+)3(Si,Al)4O10(OH)2 · 2H2O (?)
Crystal System:Orthorhombic
Strunz Nr:8/H.17-80
References:AM 39 (1954), 946
Type Locality:Gryhytte, Sweden

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