Amethyst crystal is one of several varieties of quartz, which gives it a crystal trigonal system. Amethyst is a durable stone. Its lavender to violet shade is the result of iron and aluminum deposits, as well as natural irradiation. Amethyst stone is made up of silicon dioxide.
Amethyst healing properties are as plentiful as the stone itself. It is thought of mostly as a protective stone. As it is linked to the crown chakra, it is helpful in purifying the mind and clearing it of negative thoughts. This includes the negativity of stress, anxiety, and nightmares.