Topic: flint clay

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flint clay

The Columbia Encyclopedia, Sixth Edition
flint clay see fire clay . Author not available, FLINT CLAY. , The Columbia Encyclopedia, Sixth Edition 2007 ... Read more
fire clay
The Columbia Encyclopedia, Sixth Edition clay that has a high degree of resistance to heat. By the best ... have a fusion point higher than 1,600°C. The term fire clay is commonly held to exclude kaolin and other refractory potter's clays. Fire clay should contain high percentages of silica and alumina ... soda, and potash, which lower the fusion ... Read more
Pottery
How Products Are Made ... additives give the clay different characteristics. Clay comes to a production potter in one of two forms— ... in huge quantities as dry materials, making up the clay batch as needed each day. This lovely, stout stoneware ... glasslike form)—is found in ground and calcined flint and quartz; ... Read more

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