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Bone ash acts in a bone china body as

  • A.a flux that also confers translucency
  • B.a filler that resists melting altogether
  • C.the principal plastic component of the body
  • D.a colourant that gives it a cream tone

Answer: A

Calcium phosphate forms a glassy phase and a crystalline phase that together give the characteristic whiteness and translucency. Its proportion is high, typically around half the body, so it is a major constituent rather than an addition.

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