"Natures' Fireworks," opal is the birthstone for those born in October. 95% of all fine opals come from the outback of Australia. Categories are varied by place, occurrence, and color. The name Opal is derived from the Sanskrit word “upala” (valuable stone). The reason for the fire in opals is the small spheres of silica gel causing refraction manifestations dissecting the light throughout the stone. All opals contain water (upwards of 30%!) so they cannot be stored in too dry a place, or the color will begin to dim and crack. It should be worn often to let the stone breath in the humidity and absorb oils from the skin. Opals are said to cure depression, find true love, soothe nerves and help with diseases of the eye.