The price of Donald Trump's cryptocurrency has soared after the US president promised to host two special events for its top ...

A single coin can be worth a lot of money -- a pretty penny, one might say -- if it's rare and has enough historical ...

Outside of China, the most influential investor in the world of rare earth elements has to be billionaire Gina Rinehart.

A rare silver two pence coin, dated 1985, was found in a piggy bank in the late 1990s, and could now go for up to 20,000 ...