Important ore of cobalt

• A rare silvery-white mineral

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Cobaltine \Co"balt*ine\, Cobaltite \Co"balt*ite\n. (Min.) A mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt.

Wiktionary Word definitions in Wiktionary
n. (context mineral English) A rare, gray mineral, a mixed sulfide and arsenide of cobalt and iron with the chemical formula cobaltarsenicsulfur; it is an ore of cobalt.

WordNet Word definitions in WordNet
n. a rare silvery-white mineral; important ore of cobalt

Wikipedia Word definitions in Wikipedia
Cobaltite is a sulfide mineral composed of cobalt , arsenic and sulfur , Co As S . It contains up to 10 percent iron and variable amounts of nickel . Structurally it resembles pyrite (FeS) with one of the sulfur atoms replaced by an arsenic atom. Although ...