Translucent Porcelain Lithophane by Stephanie Osser
Without a back-light it is just a white slab. But the varying thickness in the porcelain determine the amount of light that passes at any given spot, thus producing the design.
Can porcelain be translucent?
porcelain, vitrified pottery with a white, fine-grained body that is usually translucent, as distinguished from earthenware, which is porous, opaque, and coarser. ... In China, porcelain is defined as pottery that is resonant when struck. In the West, it is a material that is translucent when held to the light.
Can you see through porcelain?
The ceramic veneers attached to your teeth are extremely thin – so thin, you can often see through them before they are attached.