Kaolin is a soft, white clay used to make porcelain and fine china. When potters want to create delicate teacups or smooth, gleaming plates, they often start with kaolin because it fires (bakes in a kiln) into an especially pure white color and holds fine details beautifully.

The clay gets its name from a hill in China called Gaoling, where it was mined for centuries to create the famous Chinese porcelain that European traders desperately wanted to learn how to make. For a long time, the Chinese kept their porcelain-making techniques secret, and kaolin was a crucial part of that mystery.

Today, kaolin has uses beyond pottery. It appears in paper manufacturing to create smooth, bright white pages. It's also used in some medicines for upset stomachs and in cosmetics like face masks. But its most important role remains in ceramics: that beautiful white teacup in your grandmother's china cabinet may have started as kaolin clay, shaped by a potter's hands and transformed by fire into something both useful and elegant.