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A body classified as earthenware differs from porcelain chiefly in being

  • A.fired higher and fully vitrified right the way through
  • B.made without any clay at all in the composition
  • C.always coloured rather than white in appearance
  • D.fired lower and left porous rather than vitrified

Answer: D

Earthenware retains open porosity and must be glazed to be watertight, whereas porcelain vitrifies and is impervious in itself. The difference lies in the body composition and firing temperature rather than in the shaping.

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