One of the Stoneware matte glazes, which range from solid shades to those that create interesting color variations as they move and break. Application thickness is the key to making mattes work for you.
Cone 5/6 to 10.
Cone 6: Leather is a matte brown glaze that displays shades of blue and green. The variation of the glaze is dependent on application. See Tips.
Cone 10: Glossy blue becomes more prominent.
One Pint (16 oz.)