Digging for rare earths: The mines where iPhones are born | Apple – CNET News
A few weeks ago, History Future Now wrote about rare earths and the transfer of power from China (see article: Rare earth metals, China and the transfer of power). CNet has an article about this with videos of rare earth mines:
..rare-earth minerals [are], crucial ingredients for iPhones, as well as wind turbines, hybrid cars, and night-vision goggles. Minerals such as neodymium are used in magnets that make speakers vibrate to create sound. Europium is a phosphor that creates a bright red on an iPhone screen. Cerium gets put into a solvent that workers use to polish devices as they move along the assembly line.