Small Single Terminated YOOPERLITE Tower GeneratorsWhat is Yooperlite? Yooperlite is a syenite rock rich in fluorescent sodalite, found mostly along the shores of Lake Superior (especially in Michigan, USA). Under UV light (black light), it glows with vibrant fiery orange or yellow spots, creating a striking visual effect. While it looks like a gray or charcoal colored stone in daylight, its hidden glow gives it a mystical and energetic appeal. Main Uses of Yooperlite as a Single Terminated Tower