Found 2 items, similar to andesite.
English → English (WordNet) Definition: andesite andesite n : a dark gray volcanic rock
English → English (gcide) Definition: Andesite Andesite \An"des*ite\, n. (Min.) An eruptive rock allied to trachyte, consisting essentially of a triclinic feldspar, with pyroxene, hornblende, or hypersthene. [1913 Webster]