Natural Fluorite also known as Fluorspar.
Fluorite is a mineral form of
calcium fluoride. It crystallizes in isometric cubic habit, and is a colorful
mineral both in visible and ultraviolet light. Fluorescence involves the
elevation of electron energy levels by quanta of ultraviolet light, followed
by the progressive falling back of the electrons into their previous energy
state, releasing quanta of visible light in the process. Fluorite heightens
mental abilities, assisting in rapid organization and the processing of
information, and can also bring mental clarity and stability.