Fluorite is the mineral form of calcium fluoride. Pure fluorite is transparent, though impurities can cause fluorite to take on a range of colors, most commonly purple, blue, and green. Many samples of fluorite exhibit fluorescence under ultraviolet light.
NOTE: The item photographed is similar to the one you will receive. These specimens are either green or purple, and are approximately 1.25" in length, and weigh between 0.5 and 0.9 ounces each. Country of Origin: China.