Hyalite Opal – Zacatecas, Mexico Exceptionally strong UV fluorescence – glows with an intense neon green This remarkable hyalite opal comes from one of the most unique localities in the world – Zacatecas, Mexico. It features crystal-clear bubble-like formations that come to life under UV light with a vivid neon green glow. What makes this opal truly special? Unlike most fluorescent minerals, this hyalite fluoresces even in daylight. The effect is most striking under diffused natural light, just outside direct sunlight, where the opal emits a soft green glow. Under indoor lighting, it appears almost completely transparent. Each specimen is one of a kind – fluorescence intensity varies, making every piece a unique natural treasure. A perfect addition to any collection or an exceptional gift for mineral enthusiasts and fluorescence lovers alike. This level of natural fluorescence is extremely rare and highly sought after. Don’t miss your chance to own one.