Min. [f. Ferber name of two celebrated mineralogists + -ITE.]
† 1. A proposed name (after J. J. Ferber) for a variety of gneiss. Obs.
1811. Pinkerton, Petral., I. 216. The other may be called Ferberite, an honour due to Ferber, whose travels illustrate many parts of Italy, and the south of Germany.
2. A variety of wolfram from Southern Spain (named by Liebe after R. Ferber, 1863).
1868. Dana, Min., 604. Ferberite on charcoal fuses easily to a magnetic globule.