Opal History, Healing Properties, Types, Uses, & Zodiac Association Opal is a captivating gemstone known for its unique play of color, which can display a spectrum of hues depending on the angle of light. This silica-based mineral is prized for its iridescent qualities, making each piece truly one-of-a-kind. Opal is often used in fine jewelry, adding a touch of elegance and sophistication to any collection. visit now@ https://www.sagaciajewelry.com/blogs/news/opal-history-healing-properties-types-uses-zodiac-association