To me, moonstones have the same mystical quality that opals have, but with moonstones, it's a little softer and dreamier. The technical term for that shimmery, milky, usually blue aura that plays over the
surface of a moonstone is adularescence, and only moonstones have it. In fact, the term adularescence comes from the word "adularia," an old name for moonstones that was derived from Mt. Adularia, a
town in Switzerland and one of the first sources of moonstones. Sri Lanka is another common source for moonstones, and villagers there believe that wearing moonstones will give you a "magical
brightness" in your life because they hold some of the enchanting glow of the moon within them. They certainly appear to!