Belmont cream soup cup stand

Bone china

Bone china is a kind of porcelain body first developed in Britain in which calcined ox bone, bone ash, is a critical constituent. It is characterized by extremely high whiteness, translucency and strength. belmont cream soup cup stand may be an example of this procedure.

The initial use of bone ash in ceramics is associated with Thomas Frye in the mid eighteenth century in which he used it to develop a type of soft-paste porcelain. In As the 18th century drew to a close, Josiah Spode carried on with further developments, and consequently made it popular, by mixing it with kaolin, china clay and China stone to compete with the imported Oriental porcelain.

The initial elementary formula of four parts china stone, six parts bone ash, and three and a half parts china clay still remains the standard English body.

The production of bone china usually makes use of a 2 stage firing process where the first "biscuit" is fired without a glaze at 1280