This is a non-magical material that you can make weapons or jewelry from.  Tt absorbs the soul.  A caster of higher level/HD  must resurrect the person.  They must have the item with the soul in it persent (within 3')

price is 1,000gp per pound for weapons

Ring/amulet/etc:  1,000gp

Ammunition: 1,000gp per piece

this is an old material being updated