Cone 06: Spotted Walnut is a matte, mottled tan and light brown glaze. It has medium black and white crystals with black specks. Cone 6: Base glaze changes to white with some crystallization; crystals melt into base glaze. Enhanced mobility. Surface issues may occur. TIP: This glaze WILL move. Take care when using on vertical pieces reduce glaze thickness towards the bottom third to minimize run-off. This glaze will pinhole at three coats.