A coarse grained gray igneous rock composed mainly of alkali feldspar and ferromagnesian minerals such as hornblende
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AnswerCrossword Clue
syenitesA coarse-grained gray igneous rock composed mainly of alkali feldspar and ferromagnesian minerals such as hornblende
trachytefine-grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive equivalent of syenite