greigite

Noun

Meaning

greigite (uncountable)

(mineralogy) A magnetic form of iron sulfide, FeFe2S4, analogous to magnetite, produced by microorganisms and found in lake sediments; Note: half the iron ions are ferrous and half ferric.

Source: en.wiktionary.org

Synonyms

cobaltite arsenopyrite linnaeite tennantite pentlandite

Close letter words and terms

Greig greige greige goods greillade Grein Greiner