This diagram enables the user to craft amethyst dust. It can be purchased from the following merchants: * the Mysterious merchant * Fioravanti in Flotsam * Vilmos Bartok in Flotsam * Sendler in Lobinden * Sambor in the camp followers' encampment * Lasota at the Kaedweni camp * Myron at the Kaedweni camp * Felicia Cori in Vergen and Loc Muinne * Polycarp of Rinde in the Order of the Flaming Rose camp * The Incredible Lockhart in Loc Muinne * Falas in Loc Muinne