Inkstone

An inkstone is traditional Chinese stationery. It is a stone mortar for the grinding and containment of ink. In addition to stone, inkstones are also manufactured from clay, bronze, iron, and porcelain. The device evolved from a rubbing tool used for rubbing dyes dating around 6000 to 7000 years ago.
The inkstone is Chinese in origin and is used in calligraphy and painting. Extant inkstones date from early antiquity in China.
The device evolved from a rubbing tool used for rubbing dyes dating around 6000 to 7000 years ago. The earliest excavated inkstone is dated from the 3rd century BC, and was discovered in a tomb located in modern Yunmeng, Hubei. Usage of the inkstone was popularized during the Han dynasty.
Stimulated by the social economy and culture, the demand for inkstones increased during the Tang dynasty (618–905) and reached its height in the Song dynasty (960–1279). Song dynasty inkstones can be of great size and often display a delicacy of carving. Song dynasty inkstones can also exhibit a roughness in their finishing. Dragon designs of the period often reveal an almost humorous rendition; the dragons often seem to smile. From the subsequent Yuan dynasty, in contrast, dragons display a ferocious appearance.
The transition to civil rule under Kangxi Emperor in 1681 saw an increase in imperial inkstone production. Inkstones were often given as gifts, likely in part to help connect existing Chinese literati culture to the new Manchu imperial culture.
The Qianlong Emperor had his own imperial collection of inkstones catalogued into a twenty-four chapter compendium entitled Xiqing yanpu (Hsi-ch'ing yen-p'u). Many of these inkstones are housed in the National Palace Museum collection in Taipei.
Qing dynasty emperors often had their inkstones made of Songhua stones, but this choice was not popular outside of the imperial workshop. Inkstone design outside the palace developed largely in parallel with imperial inkstone design, although they occasionally intersected. Gu Erniang was the most famous inkstone-maker among Chinese scholars in the early Qing dynasty. Records indicate her inkstones were elegant and relatively simple, as was the preferred style at the time. However, by the late Qing dynasty, the inkstone market had turned to favoring highly intricate and novel designs.
Inkstones can be made from a variety of materials, such as ceramics, lacquered wood, glass, or old bricks. However, they are typically made from stones harvested specifically for inkstone-making. Different stones yield different quality ink; as such, the material of an inkstone is critical to its functionality. Inkstones made from the stones of specific quarries, and from specific caves within those quarries, are highly sought out by collectors.
Two types of rock are mainly used to make inkstones:
The ink stone consists of a flat part called the “hill” (qiū [丘] or gāng [冈]; oka [丘] or [岡] in Japanese), and a hollow part “the sea”, hǎi, 海 (umi in Japanese) intended to collect the ink created.
An ink stone is most appreciated for the grain, texture or even sound it produces when the Ink stick is rubbed against it in a circular motion:
The best stones have always come from Chinese quarries on the south bank of the Xijiang in Guangdong. But quarrying these stones was dangerous and strenuous, as they were usually found in caves particularly hard hit by violent floods. Even today, many mines are still in operation, and the oldest stones over a hundred years old, also known as guyàn / ko-ken (古硯), are much more sought-after than the newer ones known as xinyàn / shin-ken (新硯). Some regions of Japan also produce good quality stones.
A beginner can use very simple stones, which can later be upgraded to higher-quality ink stones as they progress.
Four kinds of Chinese inkstones are especially noted in inkstone art history and are popularly known as the "Four Famous Inkstones".
Traditional Chinese ink is solidified into inksticks. Usually, some water is applied onto the inkstone (by means of a dropper to control the amount of water) before the bottom end of the inkstick is placed on the grinding surface and then gradually ground to produce the ink.
More water is gradually added during the grinding process to increase the amount of ink produced, the excess flowing down into the reservoir of the inkstone where it will not evaporate as quickly as on the flat grinding surface, until enough ink has been produced for the purpose in question.
The Chinese grind their ink in a circular motion with the end flat on the surface whilst the Japanese push one edge of the end of the inkstick back and forth.
Water can be stored in a water-holding cavity on the inkstone itself, as was the case for many Song dynasty (960–1279) inkstones. The water-holding cavity or water reservoir in time became an ink reservoir on later inkstones. Water was usually kept in a ceramic container and sprinkled on the inkstone. The inkstone, together with the ink brush, inkstick and Xuan paper, are the four writing implements traditionally known as the Four Treasures of the Study.