Min. [Named by Gmelin in 1840 after Fayal, one of the Azores: see -ITE.] A silicate of iron and other bases, found in Fayal and elsewhere.
1844. Dana, Min., 586. Fayalite of Gmelin, from the Azores.
1879. Rutley, Stud. Rocks, xiii. 263. Eulysite.—An aggregate of reddish-brown garnet, green augite, and a mineral which, in chemical composition, is allied to the iron-olivine, fayalite.
