Fluorite (also known as fluorspar) is a mineral composed of calcium fluoride. Its color can range from pale blue-green to dark purple. Rainbow fluorite can include all hues from nearly colorless to greenish-blue to violet. Our selection of rainbow fluorite beads is available in a range of round sizes, faceted shapes, donuts and chips. All of FusionBeads.com's gemstone beads are graded AB. Learn all about gemstones in our Gemstone Q and A.