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Tuscarora quartzite

An important source of raw material for silica refractories. A typical analysis is 97.8% SiO2, 0.9% Al2O3, 0.7% Fe2O3, and 0.4% alkalies.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 points
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