AMETHYST:- Headaches, Tranquilizing, Nightmares, Depression, Addiction, Protection Amethyst is a powerful and protective stone. Amethyst is a stunning semi precious stone with exceptional healing powers can help you. it is violet-purple in color with excellent Sphere. Amethyst is a protective stone and is a symbol of strong relationships and courage. Amethyst is purple quartz, the traditional birthstone for February. It derives its name from the Greek word amethyst, meaning not drunk. The Greeks wore amethyst for protection against drunkenness, evil thoughts, magic and homesickness. In India, amethyst is used by Buddhist monks to aid in meditation.