Palladoarsenide
Palladoarsenide is an IMA-recognized mineral species in the sulfide class, with the chemical formula Pd₂As.
It crystallizes in the monoclinic crystal system (space group P2/m).
Key properties: specific gravity 10.42; Metallic. Anisotropism: Moderate, dark gray with bluish tint to red-brown in air luster.
IMA symbol Pda, IMA status: approved, named in 1973.
Occurs as minute grains in chalcopyrite in veins along the footwall of a Cu–Ni sulfide deposit (Talnakh area, Russia); from heavy-mineral concentrates (Stillwater complex, Montana, USA).
It is found associated with Chalcopyrite, sperrylite, gold, kotulskite (Talnakh area, Russia).
The name refers to PALLADium and ARSENic in its chemical composition.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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