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ATHENA

MINERALOGY

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Mineral:FREDRIKSSONITE
Formula:Mg2(Mn3+,Fe3+)BO5
Crystal System:Orthorhombic
Strunz Nr:5/G.04-40
Group:Ludwigite group
References:CM 32 (1994), 397; HB5 (2003)
Type Locality:Långban (Langban) mine, Bergslagen ore distr., Filipstad, Värmland (Varmland, Wermland), Sweden

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