The mineral fluorite comes in all colors. Deep purple,(it's most famous)amethyst, sky blue, sea green, sunny yellow, and crystal clear. There are rarer colors of pink, reddish orange (rose) and even black. Fluorite is very attractive and in demand. It is easy to see why fluorite earns the reputation as "The Most Colorful Mineral in the World". This specimen comes from Cave in Rock, Illinoise Harden County lll-Kent Flourspar District. The back side photo shows the impressive sparkling Sphalerite.