| Tetrataenite | |
|---|---|
 Silvery-bright tetrataenite crystals | |
| 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] [2] |
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, which is chemically disordered (A1) phase with an underlying fcc lattice.[7] Tetrataenite is one of the mineral phases found in meteoric iron.[8][3][9]
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ "Mineralienatlas – Fossilienatlas". www.mineralienatlas.de. Retrieved 1 April 2023.
- ^ a b "Tetrataenite: Mineral information, data and localities". Retrieved 1 April 2023.
- ^ "Tetrataenite". webmineral.com.
- ^ Lewis, L. H. (January 27, 2014). "Inspired by nature: investigating tetrataenite for permanent magnet applications". Journal of Physics: Condensed Matter. 26 (6). IOP Publishing: 064213. doi:10.1088/0953-8984/26/6/064213. PMID 24469336. S2CID 24710267.
- ^ Dos Santos, E. (6 September 2014). "Kinetics of tetrataenite disordering". Journal of Magnetism and Magnetic Materials. 375: 234–241. doi:10.1016/j.jmmm.2014.09.051.
- ^ "Tetrataenite: Tetrataenite mineral information and data". www.mindat.org. Retrieved 2018-03-30.
- ^ "Tetrataenite". webmineral.com.
- ^ "Handbook of Mineralogy – Tetrataenite" (PDF). Retrieved 1 April 2023.