Maybe it's only a problem to me because I have misconceptions about what glass was in Morrowind, so we'll start with that first. I have always gotten the idea that glass was a material specific to Red Mountain and that it was as strong as it was because it was enriched by Lorkhan's heart. This thread is about glass mostly, though I would also like confirmation that Ebony is also enriched by the Heart (supposedly the hardened blood veins of the gods, assumedly Lorkhan again since in Morrowind it was mentioned that almost all of the deposits on the continent are in Red Mountain).
So, if I am right about what glass is, what is malachite? It's not the same glass as we saw on Vvardenfell; glass there is mined out in shards and not ore. Is the glass armor in Skyrim really just 'malachite armor'? Or is it assumed the whole glass stuff has been retconned to more easily fit the new crafting system?