Kamacite
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Kamacite is an alloy of iron and nickel, which is found on Earth only in meteorites. According to the International Mineralogical Association it is considered a proper nickel-rich variety of the mineral native iron. Wikipedia
Density: 7.9 g/cm3
Color: Iron black, steel gray
Crystal class: Hexoctahedral (m3m); H-M symbol: (4/m 3 2/m)
Crystal habit: Massive – uniformly indistinguishable crystals forming large masses
Crystal system: Isometric
Formula mass: 56.13 g/mol
Formula (repeating unit): α-(Fe,Ni); Fe00.9Ni00.1
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