Once upon a time on Earth about 20 million year ago, live three igneous rocks. Their names were Basalt, Pumice, and Obsidian. They lived happily near a volcanoe in a town called Extrusiveville.Their town was made up of many rocks that all had very small crystals. The most handsome man in town was made of amorfous glass. All three of the igneous triplets wanted this man as their own.
so what happens is wen rain storm and bad weather happens that is what makes the rock be like sendy lil pices of rock
Basalt the little rocks that add up and also from water bring and from rocks falling fron hight places and breaking and shadering then the rain brings it up into layers