Lithophone
![This postcard from 1906 illustrates the method of early lithophone performances in Luray Caverns, Virginia, United States](/Images/godic/202502/13/Organ_and_Chimes_-_Caverns_of_Luray_Va_1906_postcard0512.png")
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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 (producing harmony) or in succession (melody). The lithophone is an idiophone similar to the bars on instruments such as the glockenspiel, metallophone, xylophone and marimba.