Lithium
Discovered : 1817 by J. A. R. Arfvedson

Isolated in Stockholm, Sweden

Origin : From the Greek ‘lithos’ meaning stone.

Description :

The metal with the lowest density.

Lithium salts are used in greases, batteries and glass. Lithium carbonate therapy has become standard treatment for manic depression, although its action on the brain is still not fully understood.

Image :

Alchemical symbol ‘lithos’ and element texture. Click here to see larger version of this image.