This piece of fluorite has been cut into a crystal point. This piece is mainly a calming green color. The most common color of fluorite is violet, but fluorite may also be yellow, green, white, blue, gray, black or exhibit a variety of colors in zones or bands. The different color zones are due to the presence of slight chemical impurities. Most fluorite will glow under a black light. This effect is caused by traces of uranium impurities in the fluorite. Fluorite is a highly protective and stabilizing stone, useful for grounding and harmonizing spiritual energy. Due to its powerful ability to absorb negative energies, Fluorite should be cleared often.