A lithophone is a musical instrument consisting of a rock or pieces of rock which are struck to produce musical notes. Notes may be sounded in combination by producing harmony or in succession by playing melody. A lithophone maybe a stone its self struck as a percussion instrument or with stone bars raised on a platform like the Vietnamese Dan Da. it maybe similar to the bars on instruments such as the glockenspiel, metallophone, xylophone and marimba.
In the Hornbostel-Sachs classification system, lithophones are designated as 111.22 – as percussion plaques that are directly struck.