#percussion_cap  a detonator that explodes when struck
  supertype:  detonator__detonating_device__cap  a mechanical or electrical explosive device or a small amount of explosive; can be used to fire an explosive charge
  part:  mercury_fulminate__mercuryfulminate__fulminate_of_mercury__fulminating_mercury__fulminatingmercury  a fulminate that when dry explodes violently if struck or heated; used in detonators and blasting caps and percussion caps

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