α. 1900s– titanaugite.
β. 1900s– titanoaugite.
titanaugiten.
/ˌtʌɪtəˈnɔːdʒʌɪt/, /ˌtʌɪtnˈɔːdʒʌɪt/, /ˌtʌɪtəˈnɔːɡʌɪt/, /ˌtʌɪtnˈɔːɡʌɪt/, U.S. /ˌtaɪtnˈɔˌdʒaɪt/, /ˌtaɪtnˈɑˌdʒaɪt/, /ˌtaɪtnˈɔˌɡaɪt/, /ˌtaɪtnˈɑˌɡaɪt/ Mineralogy.
A variety of augite containing titanium.
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the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxene > clinopyroxenes > augite
augite1802
green diallage1805
bronzite1816
maclureite1822
schillerite1863
titanaugite1907
1907 Mineral. Mag. 14 411 Titanaugite,..titaniferous augite.
1933 Zeitschr. f. Kristallogr. 86 112 The titanaugite in question forms a small patch or segregation within a sphene-rich, plagioclase-diopside-hornfels xenolith in the Haddo norite.
1963 W. A. Deer et al. Rock-forming Minerals II. 109 Titanaugites are the typical pyroxenes of basic alkaline rocks, e.g. teschenite, essexite and nepheline dolerite.
2004 R. H. Vernon Pract. Guide Rock Microstruct. iii. 148 Titanaugite with sector zoning is especially common in relatively rapidly cooled rocks.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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n.1907