[trey-kahyt, trak-ahyt] 
| a fine-grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive equivalent of syenite. |
[truh-kit-ik] , trach⋅y⋅toid [trak-i-toid, trey-ki-] , adjective | trachyte (trā'kīt', trāk'īt') Pronunciation Key
A light-colored, fine-grained igneous rock consisting primarily of alkali feldspar together with some mafic minerals, especially hornblende. Unlike most igneous rocks, trachyte has little or no quartz. Trachyte is the fine-grained equivalent of syenite. |