Yooperlite UV Reactive Sphere - 233g

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This Yooperlite sphere has grey-black syenite patterning with Sodalite-bearing areas that fluoresce bright orange under UV light. The contrast between the subdued daylight appearan ce and the vivid fluorescence is the main optical feature of the specimen. Includes an acrylic sphere stand. Approximate measurements5.7cm across233gLocalitiesMichigan, United States Yooperlite is a trade name used for fluorescent Sodalite-bearing syenite from the Great Lakes region, especially Michigan. The orange UV response comes from fluorescent Sodalite within the otherwise grey and dark igneous rock, so the glowing areas follow the natural mineral distribution through the sphere. Show more