Min. Also leptinite. [app. f. Gr. λεπτύν-ειν (see next) + -ITE.] The same as granulite.
18[?]. Dana (Worc.), Leptynite.
1879. Rutley, Stud. Rocks, xii. 211. Granulite (Weiss-stein or leptinite) is also composed of felspar and quartz, the felspar being orthoclase.
