Cobalt

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Cobalt
Name	Cobalt
Symbol	Co
Atomic number	27
Atomic mass	58.9 amu
Normal state	Solid
Classification	Transition metal
Crystal structure	Hexagonal
Color	Silver
Date of discovery	1737
Name of discoverer	George Brandt
Name origin	From the German kobold.
Uses	In magnets, medical radio-isotopes and (as a compound) blue or green pigment in ceramics and glasses.
Obtained from	Cobaltine, erythrite, glaucodot, and skutterudite.