a. [f. L. alūmin- ALUM + -(I)FEROUS.] Alum-bearing, yielding alum.
1849. Murchison, Silur., viii. (1867), 154. These rocks, anthracite and aluminiferous, are charged with graptolites and annelides.
1853. T. Ross, trans. Humboldt’s Trav., III. xxxii. 396. The aluminiferous slates of Chaparuparu.
