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cobaltite

American  
[koh-bawl-tahyt, koh-bawl-tahyt] / koʊˈbɔl taɪt, ˈkoʊ bɔlˌtaɪt /

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 British  
/ -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

Etymology

Origin of cobaltite

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Project Gutenberg

Its chief ores are smaltite and cobaltite, which are arsenides of cobalt, with more or less iron, nickel, and copper.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.