Some people think the opal is bad luck when worn if it is not your birthstone. This is not true. The story was started by Sir Walter Scott in his novel Anne of Gierstein , in which the heroine of the novel has her life force caught in the beautiful opal she wears and she dies when the fire in the opal is extinguished. In ancient times opal was accepted as a symbol of faithfulness and confidence. The Arabs believed that opals fell from heaven in flashes of lightning, and that's how they received their fiery color.
Opals are very powerful in ritual magic.
Since a quality opal contains every color of every other birthstone, it can be used or charged with all the energies and powers of the other stones combined and can be used in place of any birthstone for spells, rituals or other magical needs. It has reputed healing properties, especially to increase mental capacities such as creative imagination and other unused powers of the mind. Fire opals are often used in money rituals to draw funds to those who are in need, normally worn as a pendant on a gold necklace, one surrounded with 10 or 12 small diamonds is said to have excellent money drawing power. Black opals are the tools of choice for witches and magicians, who use them primarily to enhance their magical receptive or projection powers. Black opals worn near the heart on necklaces made of gold are said to ward off evil, protect one from the evil eye and protect travelers on journeys to far away lands.