The exact same case as
this post I just wouldn't necro-rez it.
At this event (Jester's+Anniversary, for future reference) I've reconstructed a few Rings of the Wild Hunt to save up some stones as oriented/suggested by someone here in the forums I don't remember. yesterday someone else mentioned you don't get any stones by deconstructing such Mystic items. Intrigued I tried to confirm this morning and, indeed, these rings don't even show up in Jewelry Crafting Stations. Digging information around, someone on Reddit said we would get Transmutation Crystals back by simply destroying the item. I found that suspicious but, either way, I tested it and as expected lost the rings used in the process.
Unless it passed unnoticed to me, I didn't see anything one Natch Potes confirming such a thing.
I am the very model of a scientist Salarian, I've studied species Turian, Asari, and Batarian.
I'm quite good at genetics (as a subset of biology) because I am an expert (which I know is a tautology).
My xenoscience studies range from urban to agrarian, I am the very model of a Scientist Salarian.