The name quartz comes from the Greek, "krystallos," meaning ice. Quartz is formed from the two most abundant elements in the earth's crust: silicon and oxygen. Quartz has a wide variety with respect to variety, color and forms. It is well loved as Amethyst, Citrine, Ametrine, Rose Quartz, Onyx, Agates, Chrysoprase, Rutilated Quartz, smokey quartz etc. There are many other natural varieties, plus synthetic quartz that comes in every color of the rainbow. In ancient time's quartz were used to make crystal balls and bowls, and today it is more often seen set in gold jewellery. Quartz gemstones are extensively used in making bracelets, earnings, necklaces, pendants, jewelry sets, diamond jewelry, and many more other things.