AEX Gold have discovered massive copper and gold deposits plus RareEarths/Graphite in Greenland. Watch the full video here.
Crypto currencies are a digital currency, that don't have a 'paper' equivalent. Like any currency, they can fluctuate up or down, based on market forces such as supply and demand. Crypto currency trading can be achieved either by buying the underlying asset - the currency itself, or by speculating on the currency movement using derivatives trading platforms.