What's the difference between columbate and columbite?
Columbate
Definition:
(n.) A salt of columbic acid; a niobate. See Columbium.
Example Sentences:
Columbite
Definition:
(n.) A mineral of a black color, submetallic luster, and high specific specific gravity. It is a niobate (or columbate) of iron and manganese, containing tantalate of iron; -- first found in New England.