a deep blue to a strong greenish-blue color.
any of a number of pigments containing an oxide of cobalt.
Also called Thénard’s blue. any greenish-blue pigment containing cobalt aluminate, usually made by heating cobaltous sulphate, aluminium oxide, and phosphoric acid together

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  • Cobalt-green

    noun 1. a medium, yellowish-green color. 2. Also called zinc green. a pigment used in painting consisting mainly of oxides of cobalt and zinc, characterized chiefly by its green color, fast drying rate, permanence, and lack of tinting strength.

  • Cobaltic

    [koh-bawl-tik] /koʊˈbɔl tɪk/ adjective 1. of or containing , especially in the trivalent state. /kəʊˈbɔːltɪk/ adjective 1. of or containing cobalt, esp in the trivalent state

  • Cobaltite

    [koh-bawl-tahyt, koh-bawl-tahyt] /koʊˈbɔl taɪt, ˈkoʊ bɔlˌtaɪt/ noun 1. a mineral, 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 . /kəʊˈbɔːltaɪt; ˈkəʊbɔːlˌtaɪt/ noun 1. a rare silvery-white mineral consisting of cobalt arsenic sulphide in cubic crystalline form: a major […]

  • Cobaltous

    [koh-bawl-tuh s] /koʊˈbɔl təs/ adjective 1. containing bivalent . /kəʊˈbɔːltəs/ adjective 1. of or containing cobalt in the divalent state

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