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cobaltite

[ koh-bawl-tahyt, koh-bawl-tahyt ]

noun

  1. a mineral, cobalt arsenic sulfide, CoAsS, silver-white with a reddish tinge: an end member of a series of solid solutions that includes gersdorffite; used as an ore of cobalt.

cobaltite

/ -tɪn; ˈkəʊbɔːlˌtaɪt; ˈkəʊbɔːlˌtiːn; kəʊˈbɔːltaɪt /

noun

  1. a rare silvery-white mineral consisting of cobalt arsenic sulphide in cubic crystalline form: a major ore of cobalt, used in ceramics. Formula: CoAsS
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of cobaltite1

First recorded in 1865–70; cobalt + -ite 1
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Example Sentences

What should be the percentage composition of pure cobaltite, its formula being CoAsS?

Massive cobaltite has been found in small amount in the Botallack mine, Cornwall.

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