Florentine gold sauce boat stand

Bone china

Bone china is a kind of porcelain body first developed in the United Kingdom in which calcined ox bone, bone ash, is an essential constituent. It is differentiated by extreme whiteness, strength and translucency. florentine gold sauce boat stand may be an example of this process.

The first use of bone ash in ceramics is assigned to Thomas Frye in 1748 in which he used it to develop a type of soft-paste porcelain. In At the close of the eighteenth century, Josiah Spode undertook further developments, and duly made it popular, by combining it with china clay, kaolin and China stone to compete against the imported Oriental porcelain.

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

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