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State whether the following is true or false.
Quartz in a fired whiteware body is completely dissolved into the glassy phase.

  • A.False
  • B.True only at large scales
  • C.False only at small scales
  • D.True

Answer: A

Only the outer edges of the grains dissolve, and the bulk remains as discrete quartz. Its survival is what makes the quartz inversion a concern during cooling of the finished ware. A body free of quartz would need no pause near 573 degrees.

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