Dixenite

dixenite

magnussonite

hematolite

adelite

Images

Formula: Cu¹⁺Fe³⁺Mn²⁺₁₄(As⁵⁺O₄)(As³⁺O₃)₅(SiO₄)₂(OH)₆
Arsenite containing hydroxyl, hematolite group
Crystal System: Trigonal
Specific gravity: 4.35 measured, 4.375 calculated
Hardness: 3 to 4
Colour: Bronze, black
Common impurities: Mg,Ca,Na,K,P
Environments

Metamorphic environments

Dixenite occurs in a metamorphosed iron-manganese orebody in serpentine (Webmin) at the type locality, Långban, Filipstad, Värmland, Sweden, which is the only recorded locality to date (October 2021) (Mindat). It is associated with hematite, adelite, native lead, domeykite and magnussonite (HOM).

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