English brocade plate 6 1 2 inch

Bone china

Bone china is a kind of porcelain body originally developed in the United Kingdom in which calcined ox bone, bone ash, is a critical ingredient. It is distinguish by extreme whiteness, translucency and strength. english brocade plate 6 1/2 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 In the late eighteenth century, Josiah Spode continued with further developments, and subsequently made it popular, by mixing it with china clay, China stone and kaolin to compete against the imported Oriental porcelain.

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

The manufacture of bone china mainly involves a 2 stage firing where the first "biscuit" is fired without a glaze at 1280