Meaning of greigite | Babel Free
Definitions
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.
uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.