Rainbow Onyx Triangular-Shaped Pendant with Silver Bail measures 1.66 inches wide by 2.17 inches long by 0.19 inch thick.
The name Onyx comes from the Greek word that means fingernail or a claw because the stone looks like them. I guess because there is a light band next to a darker shade.
Onyx healing properties:
Onyx is great for the heart, capillaries, kidneys, skin and nerves. Recommended for stress reduction.
Onyx metaphysical properties:
Opens the first, third and sixth chakras. Also balances the feminine and masculine within a person.