wow, so that's 4 million tons of bezel!
A lot of people are scoffing at this, but it actually does take a ton of bezel to make one iPhone screen. First, the bezel silicate has to be mined, in one of the bezel mining sites in Canada, China or Chile. Then it gets transported to a bezel refining site. Bezel refining is a multi-step process, requiring removal of mineral impurities, followed by separation into the actual bezel and other chemical components. The pure bezel then gets formed into bezel bars for transport, which end up at a manufacturing facility for making the "wafers" from which the actual iPhone screen bezels get cut. The point it, the raw bezel is very impure, and needs to be highly refined to get usable screen material. It actually does take about one ton of raw bezel material to make a single iPhone screen.