Onyx is a variety of the microcrystalline quartz called chalcedony. Brazil is one of the largest producers of onyx. The name onyx comes from the Greek word onux, which means "fingernail" or "claw" and was often used for carving cameos, and intaglios in signet rings.
In Greek mythology, Cupid clipped Venus' fingernails as she slept, and they transformed into onyx.
Initially, the Egyptians avoided black onyx, believing it stirred hatred between lovers, but later embraced it for its healing powers.
Black onyx became a favored material in China for jewelry and carvings, symbolizing strength, protection, and positive energy.
During the Mid-Victorian period, black onyx gained popularity as a common choice for mourning jewelry.
Wash in warm soapy water. Can use a soft bristled tooth brush to clean.