Tetrataenite
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Tetrataenite is a native metal alloy composed of chemically-ordered L10-type FeNi, recognized as a mineral in 1980.[5][6] The mineral is named after its tetragonal crystal structure and its relation to the iron-nickel alloy, taenite.[7] It is one of the mineral phases found in meteoric iron.[8][3][9]
Quick Facts General, Category ...
Tetrataenite | |
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General | |
Category | Native element minerals |
Formula (repeating unit) | FeNi |
IMA symbol | Ttae[1] |
Strunz classification | 1.AE.10 |
Crystal system | Tetragonal |
Crystal class | Domatic (m) (same H-M symbol) |
Space group | Pm |
Unit cell | 22.92 ų |
Identification | |
Formula mass | 57.27 gm |
Color | gray white, silver white |
Crystal habit | Granular – Common texture observed in granite and other igneous rock |
Cleavage | none |
Fracture | malleable |
Mohs scale hardness | 3.5 |
Luster | metallic |
Streak | gray |
Diaphaneity | opaque |
Density | 8.275 |
Common impurities | Co, Cu, P |
References | [2][3][4] |
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