If there were an award for Most Instagram-Worthy Nail Art Trend, geode nails would definitely be in the running. Rock-like on the outside but colorful and sparkly when cracked open, geodes contain ...
How World's Largest Geode Grew to Half Size of Small Room | RealClearScience Most geodes—hollow, crystal-lined rocks—can fit in the palm of your hand. But the giant Pulpí Geode, which is about half ...