What is the definition of
columbite
1.
[ noun ]
(geology) a black mineral that is an ore of niobium and tantalum
Synonyms:
niobite
Related terms:
mineral
tantalum
niobium
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Similar spelling:
columbine
Columbidae
Columbia
columbium
Columbian
coulomb
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columba
Columbus
Coulombe
columbary
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columbarium
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