For the left stone its an upside down looking T symbol. for the right stone is a P looking symbol.
Hope this helps those that are just trying to level up and don't want to put effort into the "story" like me.
@necrothery - THANK YOU!
"w r" for the glyph.
Thank you so much, Blake R ... I legit wish somebody would just make a post with all the solutions. It's the only reason I look up these stupid quests to begin with.