Min. [f. as prec. + -ITE.] A silicate of alumina, lime, and soda, found at Marmato in the Andes and elsewhere; perhaps only a mixture of labradorite with soda-felspar.
1850. Dana, Geol., xiii. 565. This albitic rock appears to be allied to the Andesite described by Mr. Darwin.
1879. Rutley, Stud. Rocks, xii. 234. The name andesite was first used by L. von Buch.
