It is a designer kaolin, they add bentonite to the material during manufacture. This vase is made from the pure material, it is very thin and light. The fired color is lighter than what you get when you add common raw bentonite to other less plastic kaolins (to bring them to the same degree of plasticity).
|Materials||Tile #6 Kaolin|
Plasticity (in ceramics) is a property exhibited by soft clay. Force exerted effects a change in shape and the clay exhibits no tendency to return to the old shape. Elasticity is the opposite.