http://breezewiki.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion/minecraft/wiki/Damage
Critical melee strikes, regardless of the weapon used, cause small star, cross shaped particles to fly out of the target who was critically hit. Arrows shot from fully charged bows have a 25% chance of becoming "critical arrows" and dealing extra damage, but all arrows from fully charged bows leave a trail of the same small star particles as they fly through the air.