Nickelskutterudite

nickelskutterudite

arsenopyrite

nickeline

clinosafflorite

Images

Formula: (Ni,Co,Fe)As3
Arsenide, skutterudite subgroup, perovskite supergroup. Forms a series with skutterudite (Mindat).
Crystal System: Isometric
Specific gravity: 6.5 measured, 5.97 calculated
Hardness: 5½ to 6
Streak: Black
Colour: Tin white - silver grey
Common impurities: Fe,Bi,S
Environments

Hydrothermal environments

Nickelskutterudite is an arsenic-bearing mineral which occurs in moderate temperature hydrothermal veins associated with arsenopyrite, silver, bismuth, calcite, siderite, baryte and quartz (HOM).

Localities

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

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

Nickelskutterudite from Bou Azzer - Image

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