Apatite is a naturally occurring gemstone, largely unknown to the general public but prized by collectors for its many different colors and forms. It is found in wide range of colors, from colorless to pink, yellow, blue to violet. The cost of the stone increases with the intensity of the color. The best apatite is neon greenish blue with a clean clarity. The color of the best specimens of this type rivals the famed Paraiba tourmalines, and Apatite is available at but a fraction of Paraiba’s price.. Apatite gemstones are fairly soft and not as often used for rings, but are very popular as earrings and pendants because of their unusual intense colors.