👉 Radiable is a type of rock formation that has been formed by a combination of magma, lava, and water. It can be found in many parts of the world, including Australia, New Zealand, South America, and North America. Radiables are usually very small and have a smooth, flat surface. They can range from a few meters to several kilometers in diameter. This type of rock formation is also known as dolerite or feldspar dolerite.