Porcelain was first made in China during the Tang dynasty (618–907 ce). The kind most familiar in the West was not manufactured until the Yuan dynasty (1279–1368 ce). It was made from kaolin (white china clay) and petuntse (a feldspathic rock also called china stone), the latter being ground to powder and mixed with the clay. During the firing, which took place at a temperature of about 2,650 °F (1,450 °C), the petuntse vitrified, while the refractory clay ensured that the vessel retained its shape. In medieval times isolated specimens of Chinese porcelain found their way to Europe, where they ...(100 of 42409 words)