An amateur prospector in the Australian state of Victoria has astonished experts by unearthing a gold nugget weighing 5.5kg.
The unidentified man, using a handheld metal detector, found the nugget on Wednesday, lying 60cm underground near the town of Ballarat.
Its value has been estimated at more than A$300,000 ($315,000: £197,000).
Local gold experts say gold has been prospected in the area for decades, but no such discovery had been made before.
"I have been a prospector and dealer for two decades, and cannot remember the last time a nugget over 100 ounces (2.8kg) has been found locally," said Cordell Kent, owner of the Ballarat Mining Exchange Gold Shop.
"It's extremely significant as a mineral specimen. We are 162 years into a gold rush and Ballarat is still producing nuggets - it's unheard of."
Cordell Kent Ballarat Mining Exchange Gold Shop A video of the Y-shaped nugget was posted on YouTube on Wednesday by user TroyAurum.
He wrote that the man who found it had said it "sounded like the bonnet of a car through the headphones.
"It was lying flat (broad side up) and he carefully dug it up."