Min. [mod. f. (Ger. in 1873) Gr. ἄλλ-ος other, different + ὀφίτης serpentine, f. ὄφις serpent.] A hydrous silicate of the Margarophyllite section, consisting chiefly of silica, alumina and magnesia.
1880. Dana, Min., App. II. 2. Allophite … distinguished from serpentine by its inferior hardness.
