KAOLIN
Dictionary of Science, Literature and Art · 1854 · p. 17
The Chinese name for porcelain clay. A large tract of this useful substance occurs near St. Austin in Cornwall, whence our potteries and porcelain manufactories are copiously supplied. Its e ential component parts are silica and alumina; the former usually preponderates. The kaolin of Cornwall, and probably of other countries, is derived from the decomposition of the felspar of granitic rocks. [s. 643]
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