Sunder, Keening, and Wraithguard have mythopoeic abilities, not average Dwemer items. I don't think the Dwemer would do that sort of thing to everything they make, and I don't think that the Dunmer would understand chemistry like the Dwemer do. To the Dunmer, it'd be bending the Earth Bones, but it just happens to be far less amazing to someone like us who know how that sort of things like us.
There is no evidence of material matter as we understand it in the TES universe. My personal conception of it has shifted in the years I have been on this forum, and now I hold that the "substance" of the TES universe is more closely related to the "Substance" you interact with inside a dream. To the dreamer it has weight, is solid, etc--- but it is actually made of nothing except PURE imagination.
From what I can gather of the Dwemer, they were actually LOOKING for the concrete--- but everywhere they looked, they found NOTHING but the same metaphysical Dream-substance, just in diffierent guises. Hell, even the GODS were made of the stuff! I feel this is why the Dwemer were not so beholden to the concepts of Divinity, at least not the divinities presented to them. The Dwemer were looking for something that was "Real"---
The shadow of a moon is still a dream-scape construct, from the world-dream. It is therefor fair game, just as much as that iron ore is. The dwemer just realized that imagination and belief are what made the (dream) world go round. They found ways to make dream-substance more "real", so that it could not be re-cast, and deteriorated by time. Is it any small wonder that they would try to do the same thing for themselves? Afterall, it was "unpopular" to the dwemer to accept being "So far below the divine." (Read, permanent, and truly real.)
It's a bit like a cartoon character realizing it is a cartoon--- and wanting to be a real person.
When the cartoon realizes they are a cartoon-- what is to stop them from picking up a cartooned pen and paper-- and doodling cartoons of their own, and bringing them into being inside their cartoon world? Dreams look to be very powerful things in the TES universe, and functionally just as "real" as the waking world.
At best, there is a fine line between dreams, beliefs, and myths---- If there is even one at all.