Harmony Stone

Power Stone

A shaped runic stone that does what its name implys and creates Harmony, for example if placed against a wall, that is cracked and crumbling apart it will reverse this and fix it but this is emotion based and therefore not everyone can do this , it also takes a crazy amount of power to charge .

depends on the size of the stone (peddle size, there will be a large one that's a myth).

a colored gem like stone, dubbed the fifth element on the street, (needs a fancy name ask babe for ideas)

as old as the universe But may be older as its near impossible to carbon date.