This looks like black glaze but if you look closely, it's a dark maroon color. The entire vase was first dipped in sapphire blue, which is a dark blue glaze. The top half was then dipped in amber glaze which is a transparent amber colored glaze. Combining these two creates this very dark maroon color.
Firing: Reduction highfire
Clay: KGBS
Made with glazes at Echo Ceramics
