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Proto-celadon (Chinese: 灰釉陶, also 原始青瓷) was a type of Chinese ceramic which developed during the Shang period and Western Han periods. It is often qualified as "proto-porcelain", and was usually adorned with a light yellowish green glaze.〔(''Chinese porcelain: art, elegance, and appreciation'' By Chen Kelun p.3''ff'' )〕 The body of proto-celadon was made of porcelain, with an iron content below 3%.〔Shanghai Museum permanent exhibit〕 Firing temperature was around 1200 degrees Celsius. Surface treatment consisted of a lime glaze.〔 The type of objects manufactured in proto-celadon were similar to the objects manufactured in bronze.〔 During the Shang and Zhou periods, proto-celadon was mainly produced in the areas south of the Yangtze river.〔 Following this period, production greatly improved in quantity and quality.〔 ==Inception of true celadon== From the Eastern Han period, true celadon ware (Chinese: 成熟青瓷) started to appear, with production focused in the Zhejiang Province.〔 Although still following the shapes and patterns of proto-celadon wares, these advances now represented the characteristics of porcelain, with refined clays and appropriate firing temperatures.〔 These advances were followed by those of Yue ware, and the blooming of celadon production from the period of the Song dynasty.〔 File:Celadon Lian bowl with Buddhist figures Western Jin 265 317CE.jpg|Celadon ''Lian'' bowl with Buddhist figures, Western Jin, 265-317 CE. File:Celadon jar Eastern Jin 317 420 CE.jpg|Celadon jar, Eastern Jin, 317-420 CE. File:Celadon jar with brown spots Eastern Jin 317 420 CE.jpg|Celadon jar with brown spots, Eastern Jin, 317-420 CE. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Proto-celadon」の詳細全文を読む スポンサード リンク
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