i have been collecting various sandstone rock formations and sculpting them into size to create my art work. these stones start off rough in general and then in use a hand held chisel to shape and etch my designs directly on to them. once shaped, i then use tiny pieces of red sandstone to build what would be a small replica of ancient ruins on the cave like structures. some times i paint pictographs and make latters to enhance the look of as if you were actually stepping back in time. the mud to hold each brick in place in made of red clay ceramic. while using a tweezers i carefully lay each stone in place.