greigite

G2R1E1I1G2I1T1E1

noun

A magnetic form of iron sulfide, Fe²⁺Fe³⁺₂S₄, analogous to magnetite, produced by microorganisms and found in lake sediments; Note: half the iron ions are ferrous and half ferric.

Scrabble 10
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Meanings

noungreigite (uncountable)
  1. uncountablechemistryA magnetic form of iron sulfide, Fe²⁺Fe³⁺₂S₄, analogous to magnetite, produced by microorganisms and found in lake sediments; Note: half the iron ions are ferrous and half ferric.

Origin

From Joseph W. Greig, American mineralogist, + -ite.

Full word history & related roots →
Cite this entry
APA

greigite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/greigite

MLA

“greigite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/greigite. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “greigite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/greigite.

Source: greigite on Wiktionary, CC BY-SA 4.0.