syenite
syenite[ˈsʌɪənʌɪt]noun- [mass noun](Geology)a coarse-grained grey igneous rock composed mainly of alkali feldspar and ferromagnesian minerals such as hornblende
(地质)正长岩
派生syeniticadjective语源- late 18th cent.: from French syénite, from Latin Syenites (lapis) (stone) of Syene (from Greek Suēnē 'Aswan', a town in Egypt)
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