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Quartzite is metamorphosed from:

  • A.Sandstone
  • B.Shale
  • C.Coal
  • D.Chalk

Answer: A

Quartzite is metamorphosed sandstone.

Heat and pressure fuse the quartz grains until the rock breaks across the grains rather than around them, making it extremely hard and resistant. Limestone under the same conditions gives marble, and shale gives slate.

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