Min. [Named, 1848, f. Gr. κρείττων stronger, superior, as being of higher specific gravity than other spinels: see -ITE.] A variety of gahnite or zinc spinel, from Bodenmais in Bavaria, containing a considerable amount of iron.
1850. Dana, Min. (ed. 3), 371. Kreittonite, a black spinel.
1893. Chapman, Blowpipe Pract., 211. Kreittonite [is] a ferruginous variety.