Yooperlite RavenYooperlite is the trademarked name of a type of syenite rock (similar to granite), rich with fluorescent sodalite. It is found predominantly along the shores of Lake Superior. Uranium glass can be kinda creepy (if displayed correctly! and our sullen raven would fit right it. Size tend to vary between 3" and 3" tall. Due to the unique nature of crystals and minerals, the actual carving you receive may differ slightly from those pictured.