Porcelain is a ceramic material that has specific properties – such as hardness, heat resistance, translucency and toughness – that make it very suitable for tableware and jewelry. In jewelry, the porcelain pieces were/are painted and glazed and set in brooches, earrings and necklaces. Wedgwood-made porcelain items that were unglazed (biscuit). Porcelain served as a popular “canvas” for miniature portrait painting in the 19th century.