Chips of
cobalt,
electrolytically refined, as well as a 1 cm3 cube for comparison. Cobalt is a hard, lustrous, silver-gray
metal that is found naturally only in
chemically combined form.
Cobalt-based blue pigments have been used since ancient times for jewelry and paints, as well as
blue-colored glass.Photo:
Alchemist-hp
Chips of
cobalt,
electrolytically refined, as well as a 1 cm3 cube for comparison. Cobalt is a hard, lustrous, silver-gray
metal that is found naturally only in
chemically combined form.
Cobalt-based blue pigments have been used since ancient times for jewelry and paints, as well as
blue-colored glass.Photo:
Alchemist-hp