(Ger. kobald, evil spirit; Gr. cobalos, mine) Discovered by Brandt in 1735. Cobalt is present in meteorites. Ore deposits are found in Zaire, Morocco and Canada. Cobalt-60 is an artificially produced isotope used as a source of gamma rays (high energy radiation).
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Brittle, hard, transition metal, magnetic properties close to those of iron, resists oxidation, exposure should be limited
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alloyed with iron and nickel to make Alnico (metal of great strength), used to make steels, alloys for jet engines and gas turbine engines, electroplating, salts used for brilliant colors in pottery and enamels. Cobalt-60 is a artificail radioactive isotope used as a tracer and in medicine.