Meissen porcelain further precaution, very few workers knew the special secret ("arcanum") of how to make porcelain, and then perhaps only part of the process. Thus, for a few years, Meissen retained its monopoly on the production of hard-paste porcelain in Europe. By 1717, however, a competing production was set up at Vienna, as Samuel Stöltzel sold the secret recipe, which involved the use of kaolin, also known as china clay. By 1760 about thirty porcelain manufacturers were operating in Europe, most of them, however, producing frit based soft-paste porcelain. In order to identify the original Meissen products, Meissen developed markings that
Capodimonte porcelain Capodimonte porcelain Capodimonte porcelain (sometimes "Capo di Monte") is porcelain created by the Capodimonte porcelain manufactory ("Real Fabbrica di Capodimonte"), which operated in Naples, Italy, between 1743 and 1759. Capodimonte is the most outstanding factory for early Italian porcelain, the Doccia porcelain of Florence being the other main Italian factory. Capodimonte is most famous for its moulded figurines. The porcelain of Capodimonte, and later Naples, was a "superb" translucent soft-paste, "more beautiful" but much harder to fire than the German hard-pastes, or "a particularly clear, warm, white, covered with a mildly lustrous glaze". The Capodimonte mark was a fleur-de-lys in