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Extract from the St Austell Travel Guides:
It was the discovery of china clay, or kaolin, in the downs to the north of
ST AUSTELL
that spurred the town's growth in the eighteenth century. An essential ingredient in the production of porcelain, kaolin had until then only been produced in northern China, where a high ridge, or
kao-lin
, was the sole known source of the raw material. Still a vital part of Cornwall's economy, the clay is now mostly exported for use in the manufacture of paper, as well as paint and medicines. The conical spoil heaps left by the mines are a feature of the local landscape, especially on Hensbarrow Downs to the north, the great green...
read the whole St Austell Travel Guides...
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