Bone fragments is a material item in Valheim. Its in-game item ID is BoneFragments, which you can drop into the console with spawn BoneFragments to give yourself one — append a number like spawn BoneFragments 50 to spawn a stack. A pile of shattered bones. The spawn command requires cheats — enable them with devcommands after opening the console.
Spawns one Bone fragments at your location.
Spawns one Bone fragments at your location.
Spawns five Bone fragments at your location.
Spawns twenty Bone fragments at your location.
A pile of shattered bones.
Bone fragments are common drops from all Skeletons in the Black Forest and Burial Chambers. They are used as a building material in many early structures and as a crafting ingredient for capes, the Stagbreaker, and several other early items.