Opals have captivated humans for centuries with their mesmerizing play of color and mysterious beauty. In this video, we ...

Different opals have differences in mineral composition depending on the geological environment from which they originate. Opal is set apart from other gemstones because of its array of vibrant ...

Browse 260+ opal stone drawings stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. F. Martin's Natural History.

Australia is the world leader in opal production and produces 95 per cent of the precious gemstone. As such, opal is regarded Australia’s national gemstone. The gem is known in Lightning Ridge and ...