Amethyst gemstone is a variety of Quartz (Silicon Oxide) its hardness property is labelled as 7..~.. Composition is SiO2 Relaxes the mind, enhances mental activity and gives strength and will power to devise passions and stop undesirable habits…~.. Physical: Stabilises metabolism, stimulates tissue rejuvenation and increases the production of red corpuscles. Can be used to treat disorders for blood sugar levels and lapses in the immune system…~… Emotionally it Strengthens thought, intensifies intuition and integrates emotional, mental and spiritual bodies to function as a single unit…