Alchemy: Shadowstones

[Bobbybrown]

I have noticed this and not sure if its intentional, but it seems there are shadowstones that are catalysts, and ones that arent, is this intentional or not?

[Vlaid]

Unintentional, if you know where the ones not marked are coming from please post them here.

[Cruzel]

I found some of the unmarked ones in the  laboratoryium? (old efua observatory imp quest??)

[Bobbybrown]

That is where I was finding some as well. So looks like the loot table might need tweaking, if I hear of where any others are coming from will post, not sure what I should do with the ones I currently have though.