Xieite

Xieite
General
Category Oxide minerals
Formula
(repeating unit)
Fe2+Cr2O4
Strunz classification 4.BB.25
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Bbmm
Unit cell a = 9.462(6) Å
b = 9.562(9) Å
c = 2.916(1) Å: Z = 4
Identification
Formula mass 453.91 g/mol
Color Golden yellow
Specific gravity 5.63
References [1][2]

Xieite is an iron chromium oxide mineral with formula Fe2+Cr2O4. It is a member of the spinel group and a high pressure polymorph of chromite.[2]

It was discovered in samples taken from the Suizhou meteorite which fell in 1986 in the Zengdu District of China.[2]

References

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