A geode is a round rock which contains a hollow cavity lined with crystals. Rocks which are completely filled with small compact crystal formations such as agate, jasper or chalcedony are called nodules. The only difference between a geode and a nodule is that a geode has a hollow cavity, ...
Once you’ve spotted the perfect item, we suggest a Google shopping search to find the exact model that will work for you. We can make some recommendations of items that have worked well for us, but take a look around and shop smart! 1. Rocks. Rocks! (Or maybe more properly in this...