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Columbite
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noun
Columbite
n. (Min.) 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.
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Etymology of 'Columbite'
Collaborative International Dictionary of English 0.48
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Words linked to "Columbite" :
tantalum
,
niobite
,
columbite-tantalite
,
nb
,
niobium
,
atomic number 73
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