The mugs on the left are made from a moderate plasticity stoneware clay. On the right: A highly plastic porcelainous whiteware type body. On the left, there is not the slightest hint of a crack anywhere. Right: 3 s-cracks on the bases, 2 handles have separated completely at the bottom and all have small cracks at the join. It is little wonder that stonewares are preferred by potters, they produce much fewer rejects.
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