Handmade Ceramic Vessel Sink – Maracuyá Ø40 cm | Volcanic Glaze Artisan BasinBold. Dramatic. Unmistakable. The Maracuy ceramic vessel sink by TATOceramika is not a sink you choose because it blends in it is a sink you choose because nothing else in the room will come close to it. The glaze is a two layer masterpiece: a deep satin black base, fired first to create a rich, velvety foundation. Over it, a fiery Sonnenfeuer yellow a volcanic, flame like glaze is applied by hand and fired again. In the kiln, the two glazes interact,