👉 Thunderstone is a type of rock that is formed by the collision of meteorites and other large bodies of material. It is a dense, grayish-brown or brown-colored rock with a smooth surface that reflects light in all directions. The texture of a thunderstone can vary greatly depending on its size, age, and composition. Thunderstones are often found in places where there has been a significant amount of impact from meteorites or other large objects, such as volcanoes or earthquakes.