(( Took me a while to respond to this, sorry all! ))
Studying the crystals proved more difficult than anticipated. The material was strange, brittle like glass-like, not quite as hard as gemstones, and with different intensities of colour in different samples, though all with a red hue.
The material did not appear to be usable for crafting, as working the crystals resulted in flaking and rumbling, despite being otherwise reasonably hard. It also seemed to distort light that went through it, changing the angle as it passed through.
The crystals did seem to have one peculiar property in that they seemed to grow and spread. Not very fast, mind you, but they definitely gained mass over time, and Zauk would find some tiny crystals growing on some of the instruments used to do his testing. They were easily cleared away and did not return if the instrument was cleaned properly though. This aspect seemed to almost be plant-like. Or perhaps fungus like? It wasn't entirely clear how the crystals could grow without some sort of liquid being involved.
Close inspection revealed that there was some very low level of energy in them, too small to pick up with detect magic, mostly - though recent samples from the Iron Mine seemed more intense. It resembled conjuration, though it wasn't quite clear if that was actually it
One final detail is that it seemed to fascinate insects and arachnids, with several samples having spider webs in the morning or flies buzzing about it. Perhaps the latter caused the former though.
But through careful study, the researchers did finally discover one important detail about the material: it was not native to Duirt. If anything, it seemed as if it was coming from beyond the regular world...
(( If you have any specific questions or research avenue's do let me know! ))