One of the world's largest amethyst geodes, the Empress of Uruguay, is located in Australia's Crystal Caves. It stands an alarming eleven feet tall and is filled with magnificent, deep violet crystals.
Bismuth Geode/ bismuth that has been grown and cooled in an eggshell! Apparently bismuth is one of the easiest crystals to grow yourself. Bismuth does not naturally occur in geode form. What fun to create your own dragon's egg!
This specimen is sometimes called the "Pink Tutu" because of its rose quartz frill. The smoky quartz formed first, then the rose quartz. Geologists suspect the pink tint comes from traces of aluminum and phosphorus.