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ATHENA

MINERALOGY

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Mineral: ERSSONITE
Formula: CaMg7Fe3+2(OH)18(SO4)2(H2O)6.6H2O
Crystal System: Rhombohedral (Trigonal)
Group: Hydrotalcite supergroup. Wermlandite group
IMA Number: 2021-016
References: MM 85 (2021), 817; AM 107/2 (2022), 318
Type Locality: Lagban (Långban) mine, Filipstad district, Värmland county, Sweden

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