syenite

Noun

sy=e=nite

CIDE DICTIONARY

syenite, n. [L. Syenites (sc. lapis), from Syene, Gr. .].

Orig., a rock composed of quartz, hornblende, and feldspar, anciently quarried at Syene, in Upper Egypt, and now called granite. [1913 Webster]

syenite, n. a grey crystalline rock of feldspar and hornblende with or without quartz.

Derivative

syenitic adj.

Etymology

F sy{eacute}nite f. L Syenites (lapis) (stone) of Syene in Egypt