How is Limestone used to make glass?
Lime stone is a sedimentary rock made of dead animal shells formed deep down in the ocean; limestone also contains a large amount of calcium carbonate. Carboniferous limestone is a different type of limestone. It was formed around 350,000,000 years ago as a marine deposit in a warm, clear, shallow sea. The rock is well bedded and jointed. The cracks that separate the beds are called bedding planes and those that run down through the rock are called joints. Glass is made from sand and limestone. Limestone is added before the heating process in which the glass is formed. The limestone in the glass helps protect it from weathering. After the heating process which is done in cool conditions a soda-lime-silica glass product is formed, which is glass, as we know it. Glass is used in almost everything: glasses, windows, mirrors, computers etc.
