I will say though, that the force ore could be made more rare. That would greatly diminish dartcrafts power on the early game making it feel less forced and more like a choice.
I'd personally rather that not happen, since I don't really use them for anything other than making a couple force engines, shears, and claws force gems are a great and plentiful source of precantatio essence for me that saves me the hassle of wasting either my vis shards or my time crafting the type of sandstone that gives some of it.