dacite

English Thesaurus

1. a grey volcanic rock containing plagioclase and quartz and other crystalline minerals (noun.substance)

hypernym	:	volcanic rock,
definition	:	extrusive igneous rock solidified near or on the surface of the Earth (noun.substance)

substance holonym	:	oligoclase, plagioclase,
definition	:	any of a series of triclinic feldspars that form rocks (noun.substance)

derivation	:	dacitic,
definition	:	relating to or consisting of dacite (adj.pert)

derivation	:	dacitic,
definition	:	relating to or consisting of dacite (adj.pert)