Ulander black plate 8 inch

Bone china

Bone china is a type of porcelain body initially used in the UK in which calcined ox bone, bone ash, is an essential constituent. It is characterised by supreme whiteness, strength and translucency. ulander black plate 8 inch may be an example of this process.

The first use of bone ash in ceramics is credited to Thomas Frye in the mid eighteenth century in which he used it to introduce a kind of soft-paste porcelain. In Towards the end of the eighteenth century, Josiah Spode continued with further developments, and duly made it popular, by combining it with kaolin, China stone and china clay to compete against the imported Oriental porcelain.

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

Bone china production ordinarily employs a two stage firing process where the initial "biscuit" is fired without a glaze at 1280