This is the bizarre moment a large egg-shaped rock floats in water, baffling onlookers in Myanmar.

The stone is dropped into a shallow container at villager Ko Aung Khaing Min's home. Strangely, the rock rises back up to the surface instead of sinking despite its weight.

The man also uses a brick to see what happens, and the object goes down.

Min said he was very confused when this happened because the stone weighs around 21.6 lbs.

It is believed that it is a pumice rock - a type of porous volcanic stone that floats on water thanks to its low density.

This is the bizarre moment a large egg-shaped rock floated in water, baffling onlookers in Myanmar.

Video shows the stone being dropped into a shallow pool in villager Ko Aung Khaing Min's home on May 30. Strangely, the rock rises back up to the surface instead of sinking despite its weight.

For comparison, Ko Aung Khaing Min also plunges a brick into the water - with the object firmly landing at the bottom.

The confused villager said the phenomenon has him stumped as the stone weighs around 21.6 lbs.

It is believed that the item is a pumice rock - a type of porous volcanic rock that floats on water thanks to its low density.