- Cobalt
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A lustrous, magnetic, silvery-white metal with a blue tint. Cobalt has been detected in Egyptian sculpture and Persian jewelry dating all the way back to third millennium BC, and in Chinese artifacts dated as early as AD 607. True cobalt beads are not often seen in typical beading applications. However the term cobalt is used to describe the deep, lustrous blue color of beads made of other materials. photo credit
