The so-called "minor arts" were very important in Byzantine art and luxury items, including ivories carved in relief as formal presentation Consular diptychs or caskets such as the Veroli casket, hardstone carvings, enamels, jewelry, metalwork, and figured silks were produced in large quantities throughout the Byzantine era. Many of these were religious in nature, although a large number of objects with secular or non-representational decoration were produced: for example, ivories representing themes from classical mythology. Byzantine ceramics were relatively crude, as pottery was never used at the tables of the rich, who ate off silver.