Soulstone
Soulstone is a type of rock on Sel used in the construction of Soulstamps for Forgery.[1]
Appearance & Properties
Soulstone is a white fine grained rock with flecks of red mixed in.[2]
Soulstone in its natural state is about as soft as chalk. However, when it is carved the material comes off very precisely. When a piece of soulstone is held in a fire, the soulstone become extremely hard, like quartz, and no more can be carved from it.[1]
Usage In Forgery
The ability to carve the soulstone precisely is what makes it so valuable for Forgery. The shape of the Soulstamp is crucial-taking off too much or too little by mistake is devastating-but soulstone effectively negates this problem.
The change in hardness of the rock is also useful. Being able to carve the stamp easily, yet in a material that will hold its shape is invaluable to a Forger. This is especially important if the Forger is making a soulstamp that they will reuse often, or an Essence Mark. The only better material for a Soulstamp is crystal, which is incredibly difficult to carve.