fayalite Min.
(ˈfeɪəlaɪt)
[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 A mineral which, in chemical composition, is allied to the iron-olivine, fayalite. |