Limestone

 **Limestone by Megan

Limestone is in a group of sedimentary rocks. Sedimentary rock are know as chemical sediments. Fossil shells are sometimes found in limestone.  There are three main limestones in Britain they are: **  **1. Carboniferous Limestone 2. Jurassic Limestones 3. Cretaceous Limestones **



 **Limestone is formed by a layer of sediment being compressed over time.

Limestone is a chemical sedimentary rock, mostly made up of the mineral calcite. When it is heated at a very high temperature it becomes the metamorthic rock. Lime stone is usally used for buliding architecture. It became popularin the 19th and 20th centuries for building churches, banks and houses. It can be used like chalk as well.**




 * What is the chemical name for limestone?
 * What can it be used for?
 * How do we get limestone?