titanomaghemiten.
/ˌtʌɪtənə(ʊ)ˌmaɡˈhiːmʌɪt/, /ˌtʌɪtn̩ə(ʊ)ˌmaɡˈhiːmʌɪt/, /ˌtɪtənə(ʊ)ˌmaɡˈhiːmʌɪt/, /ˌtɪtn̩ə(ʊ)ˌmaɡˈhiːmʌɪt/, U.S. /ˌtaɪtn̩oʊˌmæɡˈhɛˌmaɪt/, /ˌtaɪtn̩oʊˈmæɡəˌmaɪt/ Mineralogy.
A variety of maghemite containing some titanium instead of iron.
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the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > spinel group AB2 O4 > maghemite
maghemite1927
titanomaghemite1953
1953 E. Z. Basta Mineral. Aspects Syst. FeO–Fe₂O₃–TiO₂ (Ph.D. thesis, Univ. of Bristol) vi. 71 For those minerals with composition approaching (Fe,Ti)2O3 (e.g. the Bushveld maghemites) I propose the new name ‘titanomaghemite’.
1971 Nature 5 Mar. 28/1 Under conditions of low temperature and high oxygen fugacity..titanomagnetite tends to oxidize to an equilibrium mineral assemblage of rutile and haematite, with intermediate formation of titanomaghemite, ilmenite and iron-rich titanomagnetite.
2003 Science 22 Aug. 1066/1 Reflected-light microscopy showed a dominance of titanomaghemite in basalt samples.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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n.1953