D defs.my
Entry 1 sense Webster, 1913

Fayalite

/(fā"al*īt)/ · Fay·al·ite · IPA
01 n. A black, greenish, or brownish mineral of the chrysolite group. It is a silicate of iron.
  1. 1.
    A black, greenish, or brownish mineral of the chrysolite group. It is a silicate of iron.(Min.)