page_title: Millerite
section_title: Occurrence
hierarchical_section_title: Millerite / Occurrence
caption_attribution_description: English: Millerite Locality: Perseverance Mine (Boulder Perseverance Mine), Kalgoorlie, Kalgoorlie-Boulder City, Goldfields-Esperance region, Western Australia, Australia (Locality at mindat.org) An excellent and showy specimen of brassy, highly lustrous, intergrown, massive millerite needles from a VERY UNCOMMON Australian locality, the Perseverance Mine in Western Australia. 3.9 x 3.5 x 2.2 cm Deutsch: Millerit Fundort: Perseverance Mine (Boulder Perseverance Mine), Kalgoorlie-Boulder, Kalgoorlie-Boulder City, Goldfields-Esperance region, Western Australia, Australien (Fundort bei mindat.org)
context_page_description: Millerite is a nickel sulfide mineral, NiS. It is brassy in colour and has an acicular habit, often forming radiating masses and furry aggregates. It can be distinguished from pentlandite by crystal habit, its duller colour, and general lack of association with pyrite or pyrrhotite.
context_section_description: Millerite is found as a metamorphic replacement of pentlandite within the Silver Swan nickel deposit, Western Australia, and throughout the many ultramafic serpentinite bodies of the Yilgarn Craton, Western Australia, generally as a replacement of metamorphosed pentlandite. There is one known occurrence of millerite in South Africa, near Pafuri in the Transvaal. The deposit has never been commercially mined.
  It is commonly found as radiating clusters of acicular needle-like crystals in cavities in sulfide rich limestone and dolomite or in geodes. It is also found in nickel-iron meteorites, such as CK carbonaceous chondrites.
  Millerite was discovered by Wilhelm Haidinger in 1845 in the coal mines of Wales. It was named for British mineralogist William Hallowes Miller. The mineral is quite rare in specimen form, and the most common source of the mineral is in the Halls Gap area of Lincoln County, Kentucky in the United States.
caption: Lustrous mass of intergrown millerite needles from Kalgoorlie, Western Australia. (size: 3.9 x 3.5 x 2.2 cm)
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