Beatrix potter tiggywinkle and lucie

Bone china

Bone china is a kind of porcelain body first produced in Britain in which calcined ox bone, bone ash, is an essential constituent. It is characterised by supreme whiteness, translucency and strength. beatrix potter tiggywinkle and lucie may be an example of this procedure.

The first use of bone ash in ceramics is assigned to Thomas Frye in the mid eighteenth century in which he used it to develop a type of soft-paste porcelain. In In the late eighteenth century, Josiah Spode carried on with further developments, and subsequently popularised it, by combining it with China stone, kaolin and china clay to compete against the imported Oriental porcelain.

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

The production of bone china usually involves a two stage firing process where the initial "biscuit" is fired without a glaze at 1280