tholeiite

== English == === Etymology === From German Tholeiit, from Tholei (“a village in western Germany”). === Pronunciation === IPA(key): /ˈθoʊ.li.aɪt/ (UK) IPA(key): /ˈθəʊ.lɪ.ʌɪt/ === Noun === tholeiite (plural tholeiites) (geology) An igneous basaltic rock, formed from magma rich in magnesium and iron. ==== Derived terms ==== tholeiitic