What happens to the ground where lightning strikes?
When lightning strikes the ground, it creates Clinkers. These are carbon deposits similar to glass that form the structure of a tree, with loads of branches spliting off from the main trunk. The carbon (or glass) is formed due to the high temperature focused on the point where the lighting bolt earths into the ground. The sand and other minerals in ground are liquified where the electricity passes through. Clinkers can often be found and bought in good gem stores.