syenite

noun
sy·e·nite | \ˈsī-ə-ˌnīt \

Definition of syenite 

: an igneous rock composed chiefly of feldspar

Other Words from syenite

syenitic \ˌsī-ə-ˈni-tik \ adjective

First Known Use of syenite

circa 1796, in the meaning defined above

History and Etymology for syenite

Latin Syenites (lapis) stone of Syene, from Syene, ancient city in Egypt

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The first known use of syenite was circa 1796

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More from Merriam-Webster on syenite

Britannica.com: Encyclopedia article about syenite

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