Geneva plate 10 5 8 inch

Bone china

Bone china is a type of porcelain body originally produced in the United Kingdom in which calcined ox bone, bone ash, is a major ingredient. It is characterized by brilliant whiteness, translucency and strength. geneva plate 10 5/8 inch may be an example of this process.

The initial use of bone ash in ceramics is credited to Thomas Frye in in the late 1740s in which he used it to make a kind of soft-paste porcelain. In As the 18th century drew to a close, Josiah Spode undertook further developments, and consequently popularised it, by combining it with China stone, china clay and kaolin to compete with the imported Oriental porcelain.

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

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