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Green-glazed Pottery
Green-glazed pottery () was a type of colored pottery developed in China during the Eastern Han period (25–220 CE). The body of green-glazed pottery ceramics was made of clay, coated with a layer of glaze, and fired at a temperature of 800 degrees Celsius. Green-glazed pottery is a type of lead-glazed earthenware (): lead oxide was the principal flux in the glaze, often mixed with quartz in the proportion of 3:1. The polychrome effect was obtained by using as coloring agent copper (which turns green).Shanghai Museum permanent exhibit. Due to the low firing temperature, the bodies are earthenware, and the glaze often only applied to parts of the objects, which are fragile and have high water absorption. In some cases the lead glazes make the objects slightly poisonous. For these reasons, the objects are only known as grave goods from burials, and examples used in everyday life have not been found. In surviving examples the glaze has often corroded, and turned a "greyish-silver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Glazed Pottery Dog Eastern Han 25CE 220CE
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red was r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Han
The Han dynasty (, ; ) was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warring interregnum known as the ChuHan contention (206–202 BC), and it was succeeded by the Three Kingdoms period (220–280 AD). The dynasty was briefly interrupted by the Xin dynasty (9–23 AD) established by usurping regent Wang Mang, and is thus separated into two periods—the Western Han (202 BC – 9 AD) and the Eastern Han (25–220 AD). Spanning over four centuries, the Han dynasty is considered a golden age in Chinese history, and it has influenced the identity of the Chinese civilization ever since. Modern China's majority ethnic group refers to themselves as the " Han people", the Sinitic language is known as "Han language", and the written Chinese is referred to as " Han characters". The emperor was at the pinnacle o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceramic Glaze
Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a pottery body through firing. Glaze can serve to color, decorate or waterproof an item. Glazing renders earthenware vessels suitable for holding liquids, sealing the inherent porosity of unglazed biscuit earthenware. It also gives a tougher surface. Glaze is also used on stoneware and porcelain. In addition to their functionality, glazes can form a variety of surface finishes, including degrees of glossy or matte finish and color. Glazes may also enhance the underlying design or texture either unmodified or inscribed, carved or painted. Most pottery produced in recent centuries has been glazed, other than pieces in unglazed biscuit porcelain, terracotta, or some other types. Tiles are almost always glazed on the surface face, and modern architectural terracotta is very often glazed. Glazed brick is also common. Domestic sanitary ware is invariably glazed, as are many ceramics u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead-glazed Earthenware
Lead-glazed earthenware is one of the traditional types of earthenware with a ceramic glaze, which coats the ceramic biscuit body and renders it impervious to liquids, as terracotta itself is not. Plain lead glaze is shiny and transparent after firing. Coloured lead glazes are shiny and either translucent or opaque after firing. Three other traditional techniques are tin-glazed (in fact this is lead glaze with a small amount of tin added), which coats the ware with an opaque white glaze suited for overglaze brush-painted colored enamel designs; salt glaze pottery, also often stoneware; and the feldspathic glazes of Asian porcelain. Modern materials technology has invented new vitreous glazes that do not fall into these traditional categories. In lead glazes, tints provided by impurities render greenish to brownish casts, with aesthetic possibilities that are not easily controlled in the kiln. The Romans used lead glazes for high-quality oil lamps and drinking cups. At the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceramic Flux
Fluxes are substances, usually oxides, used in glasses, glazes and ceramic bodies to lower the high melting point of the main glass forming constituents, usually silica and alumina. A ceramic flux functions by promoting partial or complete liquefaction. The most commonly used fluxing oxides in a ceramic glaze contain lead, sodium, potassium, lithium, calcium, magnesium, barium, zinc, strontium, and manganese. These are introduced to the raw glaze as compounds, for example lead as lead oxide. Boron is considered by many to be a glass former rather than a flux. Some oxides, such as calcium oxide, flux significantly only at high temperature. Lead oxide is the traditional low temperature flux used for crystal glass, but it is now avoided because it is toxic even in small quantities. It is being replaced by other substances, especially boron and zinc oxides. In clay bodies a flux creates a limited and controlled amount of glass, which works to cement crystalline phases togethe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai Museum
The Shanghai Museum is a museum of ancient Chinese art, situated on the People's Square in the Huangpu District, Shanghai, Huangpu District of Shanghai, China. Rebuilt at its current location in 1996, it is considered one of China's first world-class modern museums and famous for its large collection of rare cultural pieces. History The museum was founded in 1952 and was first open to the public in the former Shanghai Racecourse club house, now at 325 West Nanjing Road. The founding collections came principally from three sources: a batch of artifacts gathered by the Communist 3rd Field Army during the civil war from accidental finds and confiscations of private property and brought to Shanghai upon the Communists' conquest of the city; artifacts confiscated by the customs service; items sold by private collectors due to political pressure during political purges and purchased by the government. The former Shanghai Municipal Museum was also merged into the new Shanghai Museum. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthenware
Earthenware is glazed or unglazed nonvitreous pottery that has normally been fired below . Basic earthenware, often called terracotta, absorbs liquids such as water. However, earthenware can be made impervious to liquids by coating it with a ceramic glaze, which the great majority of modern domestic earthenware has. The main other important types of pottery are porcelain, bone china, and stoneware, all fired at high enough temperatures to vitrify. Earthenware comprises "most building bricks, nearly all European pottery up to the seventeenth century, most of the wares of Egypt, Persia and the near East; Greek, Roman and Mediterranean, and some of the Chinese; and the fine earthenware which forms the greater part of our tableware today" ("today" being 1962).Dora Billington, ''The Technique of Pottery'', London: B.T.Batsford, 1962 Pit fired earthenware dates back to as early as 29,000–25,000 BC, and for millennia, only earthenware pottery was made, with stoneware graduall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grave Good
Grave goods, in archaeology and anthropology, are the items buried along with the body. They are usually personal possessions, supplies to smooth the deceased's journey into the afterlife or offerings to the gods. Grave goods may be classed as a type of votive deposit. Most grave goods recovered by archaeologists consist of inorganic objects such as pottery and stone and metal tools but organic objects that have since decayed were also placed in ancient tombs. The grave goods were to be useful to the deceased in the afterlife; therefore their favorite foods or everyday objects were left with them. Often times social status played a role in what was left and how often it was left. Funerary art is a broad term but generally means artworks made specifically to decorate a burial place, such as miniature models of possessions including slaves or servants for "use" in the afterlife. Although, in ancient Egypt they would sometimes bury the real servants with the deceased. Where grave go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sancai
''Sancai'' ()Vainker, 75 is a versatile type of decoration on Chinese pottery using glazes or slip, predominantly in the three colours of brown (or amber), green, and a creamy off-white. It is particularly associated with the Tang Dynasty (618–907) and its tomb figures, appearing around 700. Therefore, it is commonly referred to as Tang Sancai in Chinese. Tang sancai wares were sometimes referred in China and the West as ''egg-and-spinach'' by dealers, for their use of green, yellow, and white, especially when combined with a streaked effect. The Tang Dynasty three-color glazed pottery is the treasure of ancient Chinese ceramic firing techniques. It is a kind of low-temperature glazed pottery popular in the Tang Dynasty. The glaze has yellow, green, white, brown, blue, black and other colours. The yellow, green, and white colour-based are most predominant, so people call it "Tang Sancai." Because the Tang Sancai is unearthed in Luoyang earliest and is found the most in Luoya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
