Definition of tantalite in English:

tantalite

Syllabification: tan·ta·lite
Pronunciation: /ˈtan(t)lˌīt
 
/

noun

A rare, dense, black mineral consisting of a mixed oxide of tantalum, of which it is the principal source, and iron.
More example sentences
  • Lepidolite, beryl, tantalite, quartz crystals, and altered and unaltered petalite are some of the minerals that can be found in this district.
  • In the Democratic Republic of Congo miners seeking the highly prized mineral tantalite, or coltan, have been pouring waste into the Biega national park and Okapi wildlife reserve.
  • Although no spectacular or highly valuable minerals are present, the pegmatites contain minerals seldom found in Wyoming, such as petalite, beusite, lepidolite, and tantalite.

Origin

early 19th century: from tantalum + -ite1.

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