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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