Looking a little thin

Gorilla Glass achieves its legendary strength on a chemical level. Through an ion-exchange process, a deep compression layer is created on the glass that acts like armor. The piece of Gorilla Glass seen here is only 1.1mm thick, but its retained strength (a measure of how much it can endure damage like dings and scratches) enables it to be a suitable replacement for the 3.8mm piece of soda lime glass behind it. Soda lime glass is a common type of glass used for window panes, soda bottles, and food jars.