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Wei, river, China

(Encyclopedia)Wei wā [key], river, c.450 mi (720 km) long, rising in SE Gansu prov. and flowing E through Gansu and Shaanxi provs. to the Huang He. Its wide, alluvial valley was the site of some of the earliest ce...

kaolinite

(Encyclopedia)kaolinite kāˈəlĭnīt [key], clay mineral crystallizing in the monoclinic system and forming the chief constituent of china clay and kaolin. It is a hydrous aluminum silicate commonly formed by the...

firing

(Encyclopedia)firing, process of treating clay or other plastic ceramic materials with heat to produce a hard, durable but brittle material such as pottery. Primitive potters baked their clay in an open fire, but f...

kaolin

(Encyclopedia)kaolin kāˈəlĭn [key]: see china clay. ...

Cushing, Caleb

(Encyclopedia)Cushing, Caleb, 1800–1879, American statesman, b. Salisbury, Mass. After practicing law he served in the Massachusetts state legislature and later in Congress (1835–43). A loyal Whig, he chose to ...

pottery

(Encyclopedia)pottery, the baked-clay wares of the entire ceramics field. For a description of the nature of the material, see clay. American art pottery flourished in the first half of the 20th cent., with wor...

porcelain

(Encyclopedia)porcelain [Ital. porcellana], white, hard, permanent, nonporous pottery having translucence which is resonant when struck. Porcelain was first made by the Chinese to withstand the great heat generated...

Purbeck, Isle of

(Encyclopedia)Purbeck, Isle of, peninsula, c.12 mi (20 km) long and c.8 mi (13 km) wide, Dorset, S England, between Poole Harbour and the English Channel. St. Albans Head is the most southerly point of the rocky sh...

Jingdezhen

(Encyclopedia)Jingdezhen fo͞oˈlyängˈ [key], city (1994 est. pop. 294,000), NE Jiangxi prov., China, on the Chang River. It is world famous for its fine porcelain, made since the Han dynasty (202 b.c.–a.d. 220...

cire perdue

(Encyclopedia)cire perdue sēr pĕrdüˈ [key] [Fr.,=lost wax], sculptural process of metal casting that may be used for hollow and solid casting. The sculptor makes a model in plaster or clay that is then coated w...