Holyrood plate 8 inch

Bone china

Bone china is a kind of porcelain body originally used in Britain in which calcined ox bone, bone ash, is a major part. It is differentiated by brilliant whiteness, strength and translucency. holyrood plate 8 inch may be an example of this procedure.

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

The original elemental recipe 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 routinely employs a 2 stage firing where the first "biscuit" is fired without a glaze at 1280