Vulcan gong
The Vulcan gong was an ancient Vulcan musical instrument. It was hexagonal in shape, made of an unknown metal, and struck with a hammer that was partially made from a green stone.

During a Vulcan wedding ceremony, it was customary for the groom to call the wedding party by striking the Vulcan gong. ()

One gong was at T'Les' residence on  in 2154. ()

A similar gong was rung during Spock's fal-tor-pan ceremony on Mount Seleya in 2285. ()

During the Quorum for Commander Michael Burnhams T'Kal-in-ket in 3189, the ringing of the gong announced the opening and closing of the proceedings. ()

Gong
Musical instruments