Hubby found these while trying to farm blood from the leeches. When he checked the AH, they were listed under Alchemy materials. I wonder what they're used in.
If you are a player that in favour of the quick-farm (ie, you need money now) this is a great item . Okay, they dont stack, but the ARE a very common drop, and can be NPC'd in norg for 352 gil. I discovered this randomly, while farming eastern gems from sahagin, I randomly killed a few leeches to see what they dropped, and decided to try NPCing the items.Glad I did now ^^