Polished Rainbow Fluorite Slab - Choose your quantity! Uniqueness Guaranteed: Every item is one-of-a-kind, making them ideal for all projects or designs. Avg Size Range: (4 to 8 Inches Long) Sizes Vary Plastic stands are for display purposes only and are not included. Fluorite is known as one of the most colorful gemstones, and can appear in just about every color of the rainbow. Pure fluorite is normally colorless, but different mineral inclusions and amounts of natural radiation will alter its color. Green and purple are the most common colors, followed by yellow, blue, pink, and red. Handmade items vary in size, shape, and color when selected randomly (the highest quality items are chosen first). They'll be as beautiful as those in the photos.