"REDISCOVERING GREAT BRITISH HISTORY." Ironstone china, ironstone ware or most commonly just #ironstone, is a type of vitreous pottery first made in the Staffordshire Potteries in England in the early 19th century.
The formulation quoted in the original patent by Charles Mason, is: 4 parts china clay, 4 parts china stone, 4 parts calcined flint, 3 parts prepared ironstone and a trace of cobalt oxide. However, it has long been known that no ironstone was used; its mention, and the name of the product, was used to suggest high strength.
It is known by several names e.g.: semiporcelain, opaque porcelain, English porcelain, stone china, new stone -all of which were used to describe essentially the same product.

To identify this china

* Is it HEAVIER than it looks?
* Does it have a shiny luster?
* Does it have a back stamp or indented mark?
* Does the mark or indent mention "ironstone"?
* Is there 'crazing' (a network of fine cracks) in the glaze on the back of the dish?

Like Pottery or Ceramics? Discover more of the legacy of the British Potteries and its world heritage on the @PotteriesAuthor channel All the links at [ Ссылка ]

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