From BBC Future, 18 October 2016:
A diamond-encrusted iPhone can set you back $95m – but if this piece of i-bling is a little out of your price range, don’t feel despondent. Every smartphone contains precious metals including gold, silver, copper, platinum and palladium.
This is more than just an amusing detail about the device that never leaves your side. These precious metals are now looking more precious than ever, as we face the prospect of one day being no longer able to afford to dig them out of the ground. Suddenly your smartphone is looking a lot more valuable than you might think. Read more.