Onyx is a semiprecious stone, which people had known for a long time. The Bible says that because of him, not of marble was created by the legendary Solomon's temple. Onyx is a variety of quartz. To this species belongs, and such minerals as agate. Therefore, in many sources it says that onyx is a variety of agate. This mineral has a rich color palette. Its shades range from light green to black. In the colors of the stone can be veins. Stone is widely used in jewelry. It is also used in magical rituals and used in therapeutic activities. This is not surprising, because it is believed that onyx has healing and magical properties.