| Cuprospinel | |
|---|---|
| General | |
| Category | Oxide mineral Spinel group |
| Formula (repeating unit) | CuFe2O4 or (Cu,Mg)Fe2O4 |
| Strunz classification | 4.BB.05 |
| Crystal system | Isometric |
| Crystal class | Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m) |
| Space group | Cubic Space group: Fd3m |
| Identification | |
| Formula mass | 239.23 g/mol |
| Color | Black, gray in reflected light |
| Crystal habit | Irregular grains, laminae intergrown with hematite |
| Mohs scale hardness | 6.5 |
| Luster | Metallic |
| Streak | Black |
| Diaphaneity | Opaque |
| Specific gravity | 5 - 5.2 |
| Optical properties | Isotropic |
| Refractive index | n = 1.8 |
| References | [1][2][3] |
| Names | |
|---|---|
| IUPAC name
Copper(2+) bis[oxido(oxo)iron
| |
| Other names
Copper iron oxide , cuprospinel, Copper diiron tetraoxide, Copper ferrite
| |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
PubChem CID
|
|
CompTox Dashboard (EPA)
|
|
| |
| |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Cuprospinel is a mineral. Cuprospinel is an inverse spinel with the chemical formula CuFe2O4, where copper substitutes some of the iron cations in the structure.[4][5] Its structure is similar to that of magnetite, Fe3O4, yet with slightly different chemical and physical properties due to the presence of copper.
The type locality of cuprospinel is Baie Verte, Newfoundland, Canada,[2][1] where the mineral was found in an exposed ore dump. The mineral was first characterized by Ernest Henry Nickel, a mineralogist with the Department of Energy, Mines and Resources in Australia, in 1973.[6][7] Cuprospinel is also found in other places, for example, in Hubei province, China[8] and at Tolbachik volcano in Kamchatka, Russia.[9]
- ^ a b "Cuprospinel" (PDF). Mineral Data Publishing. Retrieved 13 October 2010.
- ^ a b "Cuprospinel: Mineral information, data and localities". Mindat.org.
- ^ "Cuprospinel Mineral Data". www.webmineral.com.
- ^ Ohnishi, Haruyuki; Teranishi, Teruo (1961). "Crystal Distortion in Copper Ferrite-Chromite Series". Journal of the Physical Society of Japan. 16 (1): 35–43. Bibcode:1961JPSJ...16...35O. doi:10.1143/JPSJ.16.35.
- ^ Tranquada, J. M.; Heald, S. M.; Moodenbaugh, A. R. (1987). "X-ray-absorption near-edge-structure study of La2−x(Ba, Sr)xCuO4−y superconductors". Physical Review B. 36 (10): 5263–5274. Bibcode:1987PhRvB..36.5263T. doi:10.1103/PhysRevB.36.5263. PMID 9942162.
- ^ Birch, William D. "Who's Who in Mineral Names" (PDF). RocksAndMinerals.org. Archived from the original (PDF) on 6 July 2011. Retrieved 13 October 2010.
- ^ Fleischer, Michael; Mandarino, Joseph A. (1974). "New Mineral Names" (PDF). American Mineralogist. 59: 381–384. Retrieved 13 October 2010.
- ^ Jing Zhang; Wei Zhang; Rong Xu; Xunying Wang; Xiang Yang; Yan Wu (2017). "Electrochemical properties and catalyst functions of natural CuFe oxide mineral–LZSDC composite electrolyte". International Journal of Hydrogen Energy. 42 (34): 22185–22191. Bibcode:2017IJHE...4222185Z. doi:10.1016/j.ijhydene.2017.01.163.
- ^ I.V. Pekov; F.D. Sandalov; N.N. Koshlyakova; M.F. Vigasina; Y.S. Polekhovsky; S.N. Britvin; E.G. Sidorov; A.G. Turchkova (2018). "Copper in Natural Oxide Spinels: The New Mineral Thermaerogenite CuAl2O4, Cuprospinel and Cu-Enriched Varieties of Other Spinel-Group Members from Fumaroles of the Tolbachik Volcano, Kamchatka, Russia". Minerals. 8 (11): 498. Bibcode:2018Mine....8..498P. doi:10.3390/min8110498.
{{cite journal}}: CS1 maint: multiple names: authors list (link)