amphigenite, -yteMin.|æmˈfɪdʒɪnaɪt| [f. amphigene + -ite.] Name sometimes given to a lava containing much ‘amphigene’ or leucite. 1868Dana Min. 335 At Vesuvius [leucite] is thickly disseminated through the lava in grains, and the name leucitophyr and also amphigenyte has been given to such lavas.