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Meaning of ferrocolumbite | Babel Free

Noun CEFR C2

Definitions

A black mineral that is an ore of niobium and tantalum.

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

Ferroconcrete ferrocyanate ferrocyanic acid ferrocyanide ferrocyanogen ferrocytochrome