shop › Facet flat white cup 10 Image 1 of 2 Image 2 of 2 Facet flat white cup 10 $50.00 Wild clay and stoneware blend, chun glaze, woodfired to 1,300 degrees in the catenary arch kiln for 30 hours. Add To Cart Added! Wild clay and stoneware blend, chun glaze, woodfired to 1,300 degrees in the catenary arch kiln for 30 hours.