Rocks produce metallic, ringing sound when hit with solid objects

A bizarre video has emerged of people hitting a rock at a temple in India to produce a bell sound.

The footage, shot on Sunday at the Mahakali Temple in Sabli near Pratapgarh, Idar, Gujarat, shows women hitting a big boulder with another rock, making it ring like a bell.

It is believed that "ringing rocks", which are volcanic rocks, produce this sound due to internal elastic stresses.

Other hypotheses suggest that the high iron content in the rocks is the origin of the mysterious sound.