Mexican OpalYour Mexican opal ring will be set in sterling silver, in either a half round or rectangle band. See last photos for examples of finished piece. If you'd like to further customize your ring, please contact me. Mexican cantera opals, cherished for their vibrant colors and unique coloring, hail predominantly from the state of Jalisco. Nestled within rhyolite or volcanic ash matrices, these opals captivate with their mesmerizing iridescence, showcasing