# fayalite

> English word · Noun

## Definitions
1. Yellow, olive green, brown or black mineral with orthorhombic crystals of the olivine group, Fe₂SiO₄.

## Etymology
From Fayal (“Faial Island in the Azores”) + -ite. Named in 1840.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fayalite