Cite
 

Meaning of andesite

an•des•ite

Pronunciation: (an'du-zīt"), [key]
— n.
  1. a dark-colored volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, as hornblende or biotite.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: