Black onyx gemstone

Black Onyx Stone - a rare mineral in black with white stripes - is a form of agate. This stone is made ​​to present the seventh and tenth wedding anniversary. The name of the stone comes from the Greek myth. When the sleeping goddess Aphrodite and her son Eros, shaved her nails. In the place where the nails were trimmed of Aphrodite, and later found the stones, which are called "Onyx", meaning "nail", or "claw."