I believe you use a pestle and mortar on them and they will become crushed.
Make by putting a silver bar through the Bone Grinder that is used to crush bones so you can ectofuntus them.
As they are so hard and sharp it is able to crush bones
bones
The Titans would be best bet for Crush, and so do the Minotaurs.
Frost Dragon Bones
The ID number of Dragon Bones is:536
Lions do not crush the bones of their prey, but hyenas do.
Theyre the same, though bones are obviously more abundant
you gather the requested bones, then follow the old mans instructions to finish the quest. You get the bones by defeating certain monsters around Runescape.
Bones 526 Bat Bones 530 Big Bones 532 Baby Dragon Bones 534 Dragon Bones 536
it would
1,092