Cobalt Cobalt is a brittle, hard, transition metal with magnetic properties similar to those of iron. Cobalt is present in meteorites. Main Ore deposits in the world are found in Zaire, Morocco and Canada. Cobalt-60 (60Co) is an artificially produced isotope used as a source of g rays (high energy radiation). Cobalt salts colour glass a beautiful deep blue colour. Cobalt was discovered in 1735 by the Swedish chemist George Brandt. It has a relatively low …
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