A gold bar weighing one kilogram was dropped into a charity collection box in the Belarussian city of Brest, a media report said on Friday.
The gold bar was discovered in a charity box set up in a grocery store to collect money for the Orthodox Church, the ONT television reported.
The anonymous donor also slipped the $50,000 gold brick's certificate of authentication into the collection box.
According to the store's security personnel, a middle-aged man dumped the gold brick into the box. The man had apparently earlier attempted to hand the brick to a local church groundskeeper, however he refused to accept the donation.
A local church official said the donation would be enough to almost completely pay for the construction of a new church.