Lightning rock

Here is an update from www.coasttocoastam.com A friend of mine in Michigan has found these rocks that were formed from lightning strikes. He even witnessed the lightning and retrieved the remains and this is what he discovered. He described a hole at the surface that was around 15 inches then went into a cone like shape into the ground. These are the rocks that were found 3 feet under the ground; he has a piece that goes together piece by piece, as you can see the way he is holding the rocks. I've never seen anything like this have you? --Matthew Webb grovecats@yahoo.com Better know as a fulgurite.