Heazlewoodite
A variety of Minerals

What is Heazlewoodite?
Heazlewoodite, Ni3S2, is a rare sulfur-poor nickel sulfide mineral found in serpentinitized dunite. It occurs as disseminations and masses of opaque, metallic light bronze to brassy yellow grains which crystallize in the trigonal crystal system. It has a hardness of 4, a specific gravity of 5.82. Heazlewoodite was first described in 1896 from Heazlewood, Tasmania, Australia.
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Key Characteristics
Formation of Heazlewoodite
Heazlewoodite is known from few ultramafic intrusions within terrestrial rocks. The Honeymoon Well ultramafic intrusive, Western Australia is known to contain heazlewoodite-millerite sulfide assemblages within serpentinized olivine adcumulate dunite, formed from the metamorphic process. The mineral is also reported, again in association with millerite, from the ultramafic rocks of New Caledonia. This mineral has been found in meteorites including irons and CV carbonaceous chondrites.
Quick Facts
Physical Properties
- Color
- Light bronze or brass yellow
- Hardness (Mohs)
- 4
- Density
- 5.87 g/cm³
- Streak
- Light bronze
Chemical Properties
- Chemical Formula
- Ni3S2
- Elements
- Ni, S

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