Forsyth plate 6 1 2 inch

Bone china

Bone china is a type of porcelain body first developed in the UK in which calcined ox bone, bone ash, is a critical ingredient. It is differentiated by extreme whiteness, translucency and strength. forsyth plate 6 1/2 inch may be an example of this process.

The initial use of bone ash in ceramics is associated with Thomas Frye in seventeen-forty-eight in which he used it to develop a kind of soft-paste porcelain. In In the late eighteenth century, Josiah Spode undertook further developments, and subsequently made it popular, by combining it with kaolin, china clay and China stone to compete with the imported Oriental porcelain.

The original elemental recipe of three and a half parts china clay, four parts china stone, and six parts bone ash still remains the standard English body.

Bone china production consistently involves a two stage firing where the first "biscuit" is fired without a glaze at 1280