Black opals are believed to have many benefits, including: Protection: Black opals are thought to protect against negative energy, emotional toxicity, and psychic attacks. They are said to create a shield that transforms negative energy into uplifting vibrations. Healing: Black opals are thought to help heal emotions, release anxieties and grudges, and help people get past emotional trauma. Creativity: Black opals are said to enhance creativity and imagination. Balance: Black opals are thought to help people achieve balance and recalibrate their bodies. Dreams: Black opals are said to help people experience foretelling dreams and visions. Luck: Black opals are said to bring luck. Relationships: Black opals are said to strengthen the bond between lovers and ignite passion. Happiness: Black opals are said to increase happiness and prosperity. Zodiac signs: Black opals are said to be especially beneficial for people with the zodiac signs of Gemini, Libra, and Aquarius. Fortune telling: Black opals are said to help fortune tellers induce trances and channel information. Eye problems: Black opals are said to prevent and treat eye problems. Black opals are rare gems with a dark background and rainbow-colored displays. They are considered one of the most valuable opal varieties, especially those from Australia's Lightning Ridge.