Kaolin: From Ancient Porcelains to Nanocomposites

• DOI: 10.2113/gselements.10.3.177
• Publication Date: 2014-06-13T10:25:11Z
• Authors: P. A. Schroeder; G. Erickson
• Keywords: 2. Zero hunger; 02 engineering and technology; 01 natural sciences; 0201 civil engineering; 0105 earth and related environmental sciences; 3. Good health

Kaolin has played a prominent role in both Earth and human cultural history, and will continue to do so into the foreseeable future. Its abundance in the rock record has varied according to the waxing and waning of life faunal radiations, crustal differentiation, and climatic conditions. Kaolin-group minerals play an important environmental role in soils of tropical and temperate regions. They also occur in hydrothermal zones, where they form at the expense of felsic rocks through acid hydrolysis, and commonly in episodic geologic events. Kaolin deposits form the basis of many modern materials, but the first sophisticated human use was in porcelains from Jingdezhen, China. From the initial discovery of kaolin and its sculptural use 2000 years ago to today9s modern applications in nanocomposites, kaolin has been important throughout cultural history. Art and science are intertwined by the properties and uses of this amazingly small clay mineral.