The Gold Rush star showed off the gold nugget on social media, saying discoveries like this don’t happen often.

And with the price of gold skyrocketing, Mr McGrath said interest in searching for nuggets had also increased ... which can be purchased on the Queensland government's website.

People have long been fascinated by nuggets, large aggregates of almost pure gold often found nestled within the host rock or loose in weathered sediments. But how exactly nuggets form remains a ...