Nickelskutterudite

arsenide

perovskite

Formula: (Ni,Co,Fe)As3
Arsenide, skutterudite sub-group, perovskite super-group. Forms a series with skutterudite (Mindat).
Specific gravity: 6.5
Hardness: 5½ to 6
Streak: Black
Colour: Tin white - silver grey
Environments

Hydrothermal environments

Nickelskutterudite occurs in moderate temperature hydrothermal veins associated with arsenopyrite, silver, bismuth, calcite, siderite, baryte and quartz (HOM).

At Ait Ahmane, Bou Azzer, Morocco, nickelskutterudite occurs on nickeline associated with clinosafflorite (MinRec 38.5.385).

At Ightem, Bou Azze, Morocco, nickelskutterudite occurs in a dolomitic carbonate vein with nickeline (MinRec 38.5.385).

Common impurities: Fe,Bi,S

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