For mental clarity & test taking
Mystic Lore: Intuitive sources say that Fluorite is a useful stone for clarifying one's mental processes and bringing one's energies 'down to earth'. It is believed to facilitate enhanced concentration and more rapid learning, as well as to help one to make better judgements.
Fluorite: This colorful gemstone is a calcium fluoride compound found in the United States, West Germany, England and China. Colors include blue, green, purple, gold and multicolored patterns. It sometimes grows in near-perfect octahedral crystals.