Lithium

Lithium, Li, atomic number 3. Melting point 453K. A silvery white alkali metal used by industry in ceramic production, and in electronic devices for energy storage. Before the advent of direct brain treatments it was used to treat human mental disorders in early history.

— In-Game Description

Lithium is a specific item of Metals in the galaxy. It can be refined from Lepidolite with a Refinery Contact.