Fluorite is a protective stone that brings structure in your life. It works emotionally stabilizing and it gives you insight in repressed feelings. It helps you to create order in the chaos, to improve your concentration and to apply new information. It helps you to absorb new knowledge, which makes it a perfect stone to help you study.
Fluorite isn't very water resistent and can discolor when left in bright sunlight, but it can be cleansed and charged in every other way. Here I explain more about cleansing and here about charging crystals. :)