Haversham rim soup 8 inch

Bone china

Bone china is a kind of porcelain body originally produced in England in which calcined ox bone, bone ash, is a major constituent. It is characterized by brilliant whiteness, strength and translucency. haversham rim soup 8 inch may be an example of this procedure.

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

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

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