Amethyst is a purple crystal and occurs in primary hues from a light lavender to a deep purple. The crystal was used as a gemstone by the ancient Egyptians. The belief that the crystal posses healing property date back thousands of years. The Greeks believed amethyst could prevent intoxication while medieval soldiers wore amethyst amulets as protection. While in England beads of amethyst were found in Anglo-Saxon graves. In Feng Shui amethyst is seen as increasing wealth, yet In ancient China, it was used as a powerful tool to remove negative energies. Modern crystal healers see amethyst as the protective crystal, one which guards against psychic attack, electromagnetic stress and even protecting the wearer from the ill wishes of others. By reducing stress it is seen as the natural tranquilliser, the calming crystal, and with reduced stress comes reduced irritability and the balance of mood swings further reducing anger and anxiety. As the Greeks believed Amethyst could prevent intoxication modern healers also believe the crystal encourages sobriety . These are all positive effects on the mental state however, it is believed that amethyst can have a positive profound impact on the physical being, from boosting hormone production to strengthening the immune system and even helping the body in the fight against cancer.