These are the 2 main materials for tailoring. They are both uncommon and have the same icon. Impossible to see how many you have of each when you check bags or bank or anything else. It is 2 different items so please change one of their icons.
haven’t startd levelling my tailoring yet but good to know this. I do use bagnon which provides info on how many and where you have items (bag/bank/Guild/alts)