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ATHENA

MINERALOGY

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Mineral: ZINKGRUVANITE
Formula: Ba4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2
Crystal System: Anorthic (Triclinic)
Group: Ericssonite group
IMA Number: 2020-031
References: EJM 32 (2020), 443; EJM 33/6 (2021), 659
Type Locality: Zinkgruvan Zn–Pb–Ag deposit, near Ammeberg (Åmmeberg), Askersund Municipality, Örebro County, Sweden

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