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TWL
Columbite
Full definition of columbite
Noun
columbite
(
plural
columbites
)
(
mineral
) A black
mineral
that is a mixed
iron
and
manganese
niobate
and
tantalate
, and is the main
ore
of
niobium
and
tantalum
.
Related terms
columbium
Derived terms
coltan
columbite-tantalite
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