Opal gemstone comes in various types, each with unique characteristics. Ethiopian Welo opal, known for its fiery play of colors, is one of the most popular types. Mexican Cantera opal is distinguished by its porous and lightweight nature, while Peruvian blue opal is known for its striking blue color. Opals come in a range of colors, including white, black, gray, and red. Cabochonsforsale offers a wide selection of opal cabochons in different colors and types, perfect for creating stunning jewelry pieces.