Chinese Porcelain
Porcelain did not come easily. After several thousand years of hard work, the
early potters accumulated rich experience in their craft. The earliest porcelain
appeared in the slave societies of the Shang and Zhou dynasties.
Porcelain as such was, in its initial stage, rudimentary
and known now as the proto-celadon from which porcelain developed independently.
Whereas pottery is porous and opaque and gives a dull sound when struck,
porcelain, non-porous, translucent, and smooth-surfaced, is finer, harder, and
closer-knit in texture and gives a metallic sound when struck.
Since the founding of the People's
Republic of China in 1949, a considerable number of Shang and Zhou
proto-celadon vessels have been unearthed in many provinces in the Huanghe
River (Yellow
River) valley and the middle and lower reaches of the Yangtze
River. These findings are different from earlier pottery made from clay
paste, mainly in two aspects.
Proto-celadon used white china clay, or kaolin (an infusible white mineral
earth produced in the area of Gaoling Village in Fuliang County in East China's
Jiangxi
Province), which is a fine, pure material suitable for making high quality
porcelain.
The second difference is that the firing temperature was at least 1,200
degrees Celsius-much higher than for firing pottery, meaning that the
distinction between porcelain and pottery lay in the firing of the paste.
These two changes-in the material used and in firing temperature-brought
about porcelain. This Shang and Zhou proto-celadon, which basically resembled
Song Dynasty (960-1279) celadon, is China's earliest porcelain, dating back to
the Shang
Dynasty, 3,400 or 3,500 years ago.
Porcelain making became steadily popular in the Warring
States Period, when it began to step out of its primitive state.
Early in the Western
Han Dynasty whole sets of celadon vessels were manufactured, according to
specimens of Western Han vessels that were excavated in Peixian County, Jiangsu
Province. Both specimens have been displayed in the Pottery and Porcelain
Hall of Beijing's
Palace
Museum. The ewers, steamers, vases, jars, tripods and boxes have a hard
paste and are smooth and lustrous compared with earlier wares. The frequent
discovery of Han porcelain in archaeological digs indicates that large
quantities of the ware were manufactured during the period.
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