Atheneite

atheneite

arsenopalladinite

palladseite

isomertieite

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Formula: Pd₂(As_0.75Hg_0.25)
Arsenide, palladium- and mercury- bearing mineral
Crystal System: Hexagonal
Specific gravity: 10.2 measured, 10.16 calculated
Hardness: 5
Streak: Grey
Common impurities: Au,Cu,Sb
Environments

Placer deposits

Athenite has been found in concentrates from gold washings, associated with arsenopalladinite and hematite (Mindat, HOM).

Localities

At the Type Locality:ⓘ Itabira, Minas Gerais, Brazil, atheneite was found as a few grains in residual concentrates from gold washings; intergrowths with arsenopalladinite occur, and hematite inclusions are also present (AM 59.1330-1332). Other associated minerals include palladseite and isomertieite (HOM).

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