The company has tweaked the chemical and atomic composition of the raw materials of the glass, which in turn has increased its density -- making it much more scratch and dent resistant than last years model.

ENGADGET: Corning demonstrates how strong its Gorilla Glass 3 really is (video)

The process started with 30 tonnes of raw materials and 500 tonnes of solvent and usually requires a dozen separate chemical steps and takes more than two years.

FORBES: Reviving Novartis