Cone 6: Dark Magma is a charcoal-colored, high-texture glaze that creates a rough, cratered surface. The thicker the application, the more textured the surface will be.
Cone 10: Texture slightly flattens. No change in color.
Magma was developed to create a rough, cratered surface. The thicker the application, the more textured the surface will be. Magma can be directly applied to bisqueware or in combination with other mid-range glazes. The amount of dimension and cratering created with these glazes is directly a result of how thick the glaze is applied. A thinner application will produce a less dimensional surface with minimal cratering. It will have more of a sandpaper feel. A thicker application will produce a more dimensional and cratered surface.
Not recommended for food surfaces due to surface characteristics left by crystals in the glaze.