Min. [mod. (Ger. aluminit 1807) f. L. alūmin- ALUM + -ITE min. form.] An opaque, whitish mineral, a native hydrosulphate of alumina, called also WEBSTERITE.
1868. Watts, Dict. Chem. (1871), V. 579. The tribasic sulphate [of aluminium], 3Al2O3.SO3.9H2O, occurs native as aluminite, a white, opaque earthy mineral.
