单词 | pseudorutile |
释义 | > as lemmaspseudorutile pseudorutile n. Brit. /ˌs(j)uːdə(ʊ)ˈruːtʌɪl/ , U.S. /ˌsudoʊˈruˌtil/ , /ˌsudoʊˈruˌtaɪl/ Mineralogy a black or dark grey mineral which is a common alteration product of ilmenite occurring as thin plates and as intergrowths with ilmenite and rutile.Pseudorutile is an oxide of ferric iron and titanium, Fe2Ti3O9. Crystal structure: trigonal.ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > others crichtonite1813 polymignite1826 warwickite1838 samarskite1849 adelpholite1859 guarinite1859 hielmite1861 tapiolite1868 sipylite1877 koppite1880 stibiotantalite1893 lewisite1895 mossite1898 neotantalite1903 priorite1907 arizonite1909 betafite1912 ampangabeite1913 ishikawaite1922 tanteuxenite1928 thoreaulite1934 simpsonite1937 priderite1951 irinite1955 obruchevite1955 lueshite1961 pseudo-ixiolite1963 wodginite1963 pseudorutile1966 armalcolite1970 1966 G. Teufer & A. K. Temple in Nature 9 July 180/1 As a result of an investigation of several altered ilmenite concentrates by X-ray techniques hitherto not applied to this problem, a new crystalline phase has been identified as a major constituent of altered ilmenite... We propose the name ‘pseudorutile’ for this new mineral. 1975 Amer. Mineralogist 40 905/2 The electrochemical corrosion model is consistent with the pseudorutile composition being a stable alteration product of ilmenite in which all the iron is in the ferric state. 1997 Mineral. Mag. 61 234/2 The pseudorutile is a combination of goethite and rutile as an intergrowth structure. < as lemmas |
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