two glossy panels of aluminosilicate glass - the same type of glass used in the windshields of helicopters and high-speed trains. Chemically strengthened to be 20 times stiffer and 30 times harder than plastic, the glass is ultradurable and more scratch resistant than ever.

The answer will depend on the quality of the glass and how it is strengthened.

Fiberglass is basically a plastic matrix strengthened with glass. It has the benefit of being both lightweight and strong.

Fibre glass and asbestos are very different (chemically) materials.

Gorrila glass is a "Corning" manufacturing product. It is a alkali-aluminosilicate sheet of glass. Basically, it is meant to be highly thin and resistant to much surface damage. It is mostly chemical strengthened glass.