Discover The Glowing Rock Called Yooperlite

glow in the dark rocks

When I was nine years old, I visited my cousins in Reading, Pennsylvania. Knowing I’m an avid rock collector, my cousin excitedly told me we’d be seeing the crystal caverns! He mistakenly believed the crystals would fluoresce in UV light but that got me thinking about other crystals and where a rockhound might be able […]