tetanya

HI all, I'm playing QW2 and on the Ink for the Erudico quest I've come across a problem. I have the sap and I've been to the Khorfax Quarry SE building and looked in the jar. Which is where the ochre was (I think). When I open it again it says I've already opened the jar. But I don't see any ochre in my special items list, so I can't complete the quest. Did I miss something? Thanks!