👉 Cypselous is a type of stone that is found in the sedimentary rock layers of the Earth. It is typically composed of calcium carbonate, which gives it its distinctive green color and helps to create the impression of being a "stone" or "cyst." Cypselous stones can be found in various shapes and sizes, ranging from small pebbles to large boulders. They are often used as decorative elements in architecture and landscaping, particularly in gardens and outdoor spaces.