Crystals [Tress, Mistborn era 1, WaT Spoilers]

So, the crystals Dova/Battar uses to heal Moash, do we think that's Roseite? I can't remember exactly how it goes in WaT but I recall it sounding like they are initially placed into Moash's eyes and then keep growing (until you get the crown), this seems like it would be similar to the slow additional growth of physical aethers from additional water in Tress. I hadn't seen many people talk about the specifics of the crystals in this way and were focusing on the similarities to Steel Inquisitors instead.