Amethyst
Amethyst is the purple variety of quartz.Its colors range from dark purple, light purple to lavender. The deep purple color has established amethyst as a stone of royalty. It has been used since the dawn of history. Amethyst was favorite to the Egyptian kings, Catherine the Great etc. Also it was encountered in the breastplates of the high priests of Israel, british crown etc. It has hardness 7 on the scale of Mohs. The ancient Greeks drank wine in glasses of amethyst to stay sober no matter how much they drank. Hence the name. Amethyst may be found in Canada, Brazil, Uruguay, Ontario, Mexico, North Carolina, Pennsylvania and Colorado.
Amethyst, according to tradition, guards against drunkenness and it is thought to be helpful in overcoming addiction. Relieves stress and strain, balances mood swings and dispels anger, rage, fear and anxiety. Alleviates sadness and grief, and dissolves negativity. It calms and stimulates the mind, helping you become more focused, enhancing memory and improving motivation. It attracts real love. It boosts hormone production, tunes the endocrine system and metabolism.
Zodiac: Aries, Scorpio, Aquarius, Pisces.