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ATHENA

MINERALOGY

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Mineral: GRISCHUNITE
Formula: NaCa2Mn2+5Fe3+(AsO4)6.2H2O
Crystal System: Orthorhombic
Group: Wicksite group
IMA Number: 1981-028
References: SMPM 64 (1984), 1; AM 72 (1987), 1225; HB4 (2000)
Type Locality: Falotta, Sursass, Tinizong, Grischun (Graubünden), Switzerland

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