> as lemmas
yttroˈtantalite
yttroˈtantalite n. 
/ˌɪtrə(ʊ)ˈtantl̩ʌɪt/, /ˌɪtrəˈtæn(t)lˌaɪt/ [tantalum n.]
Brit. /ˌɪtrə(ʊ)ˈtantəlʌɪt/
, /ˌɪtrə(ʊ)ˈtantəlʌɪt//ˌɪtrə(ʊ)ˈtantl̩ʌɪt/U.S. /ˌɪtroʊˈtæn(t)lˌaɪt/
, /ˌɪtroʊˈtæn(t)lˌaɪt//ˌɪtrəˈtæn(t)lˌaɪt/ΘΚΠ
the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > tantalite
tantalite1805
yttrotantalite1809
ixiolite1861
1809 Wollaston in Philos. Trans. (Royal Soc.) 99 246 The two Swedish minerals, tantalite and yttro-tantalite, from which I could obtain tantalum.
1868 J. D. Dana Syst. Mineral. (ed. 5) 519 Yttrotantalite..Color black, brown, brownish-yellow, straw-yellow... Tantalate of yttria and lime, or yttria, lime, and iron, with some protoxyd of uranium.
<
as lemmas