Satyamani Natural Energized 2 pcs. Geodes. 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, and a nodule is solid. (Rest Details and usage method will be sent along with the product) Note: These are natural stones and only shape has been given. Please note that you will be sent a similar pendant which is 100% natural. Availability may subject to in stock product. Data is collected from healers all over the world. We do not claim anything.