
Opal (gemstone)
Opal is a unique gemstone known for its mesmerizing play of colors, called "opalescence," resulting from its internal structure that diffracts light. Composed mostly of silica, it forms through the gradual deposition of silica-rich solutions in rock cavities. Opals can display a broad spectrum of vibrant hues—reds, blues, greens—making each one distinctive. They are relatively soft compared to other gemstones and require careful handling. Valued for their aesthetic appeal, opals are popular in jewelry and are considered symbols of creativity and inspiration. Their beauty and rarity make them a cherished gemstone worldwide.