jasperware

Fine-grained, hard, slightly translucent stoneware perfected by Wedgwood in 1775.

Jasperware is made by adding sulphate of barium to the usual clay. It is pure white at first, but can be stained to a wide variety of colours, the most most well-known being Wedgwood blue.

It was originally decorated with slip but later with high relief decoration, medallions, and pictorial scenes.