cobaltite

cobaltite

[koh-bawl-tahyt, koh-bawl-tahyt]
noun
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.

Origin:
1865–70; cobalt + -ite1

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World English Dictionary
cobaltite or cobaltine (kəʊˈbɔːltaɪt, ˈkəʊbɔːlˌtaɪt, ˈkəʊbɔːlˌtiːn, -tɪn)
 
n
a rare silvery-white mineral consisting of cobalt arsenic sulphide in cubic crystalline form: a major ore of cobalt, used in ceramics. Formula: CoAsS
 
cobaltine or cobaltine
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

cobaltite

a cobalt sulfoarsenide mineral in which iron commonly replaces part of the cobalt [(Co,Fe)AsS], that occurs in high-temperature deposits. Notable occurrences are at Daskasan, in the lesser Caucasus, Azerbaijan; Tunaberg, Swed.; and Rajasthan, India. Cobaltite, like its relatives gersdorffite and ullmannite, crystallizes in the isometric system and is closely related to pyrite. They differ from the pyrite group minerals only because the S2 groups are replaced by AsS or SbS and are distinguishable because they are not as hard. For detailed physical properties, see sulfide mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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