Cone 6: Amber Quartz is a warm amber matte glaze that adds accents of tan and brown. The variation of the glaze is dependent on application. The thicker the application, the more homogenous the color will be. The glaze will break translucent where thinner and pool darker around surface textures.
Cone 10: Glossy purple/blue is more prominent.
Stoneware matte glazes range from solid shades to those that create interesting color variations as they move and break. Application thinkness is the key to making mattes work for you.