Cone 6: Copper Ore is a highly mobile, reddish brown metallic glaze. A dark bronze field breaks with areas of darker coloring and flashes of brighter red metallic. The movement within this glaze produces striking visual textures. Cone 10: Finish flattens. Color turns to red/brown. Increased movement. TIP: This glaze WILL move. Take care when using on vertical pieces ā reduce glaze thickness towards the bottom third to minimize run-off.