Amphora Jar - Esther EstevezDescription Blue and Black Amphora. Blue and black mixed clay with the same qualities. Trimmed on the wheel. Water proof and suitable for interior and exterior Origin Per. Materials Black and blue stoneware clay with 40% impalpable grog 0 0. 2 mm interior glazed glossy. About Esther Estevez Esther Estvez is a multidisciplinary artist and designer. Rotterdam based ceramicist. Her work stems from the intersection of craft and design with an affinity for