: a dull black ore that consists of a mixture of columbite and tantalite and is a minor source of tantalum
Examples of coltan in a Sentence
Recent Examples on the Web
Chávez that year said a large reserve of coltan was discovered in the country, according to Reuters.
—
John Towfighi,
CNN Money,
11 Jan. 2026
In addition to a long tradition of unregulated gold mining in the Orinoco region of western Venezuela, guerilla groups have more recently begun mining rare earth minerals like coltan.
—
Jason Abbruzzese,
NBC news,
7 Jan. 2026
For coltan, Apple relies on three Chinese companies and one firm in Kazakhstan, with the mineral likely originating in a mining area of eastern Congo, the lawsuit claimed.
—
Ethan Baron,
Mercury News,
3 Dec. 2025
Near Goma, there are lucrative mines for gold and for coltan, which is crucial to manufacturing batteries and cellphones.
—
Jon Lee Anderson,
New Yorker,
24 Nov. 2025
See All Example Sentences for coltan
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John Towfighi,
CNN Money,
11 Jan. 2026
In addition to a long tradition of unregulated gold mining in the Orinoco region of western Venezuela, guerilla groups have more recently begun mining rare earth minerals like coltan.
—
Jason Abbruzzese,
NBC news,
7 Jan. 2026
For coltan, Apple relies on three Chinese companies and one firm in Kazakhstan, with the mineral likely originating in a mining area of eastern Congo, the lawsuit claimed.
—
Ethan Baron,
Mercury News,
3 Dec. 2025
Near Goma, there are lucrative mines for gold and for coltan, which is crucial to manufacturing batteries and cellphones.
—
Jon Lee Anderson,
New Yorker,
24 Nov. 2025
See All Example Sentences for coltan
Cite this Entry
“Coltan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coltan. Accessed 5 Jul. 2026.
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