Opal gemstone, known for its mesmerizing play-of-color, is a unique and captivating member of the mineral kingdom. Opals display a stunning array of colors, ranging from fiery reds and oranges to brilliant blues and greens, often shifting and dancing as light hits the gemstone from different angles. This phenomenon, known as play-of-color, gives opals their distinctive and enchanting appearance. Opals are formed from silica-rich solutions that seep into rock crevices and cavities over millions of years, gradually solidifying into a unique combination of silica spheres and water. This unique structure is what causes the diffraction of light and the vibrant...