Sentence Examples


  • Examined more closely these are found to be vast accumulations of blocks of quartzite, irregular in form, but having a tendency to a rude diamond shape, from 2 to 20 ft.
  • In length, and half as much in width, and of a thickness corresponding with that of the quartzite ridges on the hills above.
  • Another out of many theories 1 is that the hard beds of quartzite are denuded by the disintegration of the sof ter layers.
  • (3) The " banket " formation, which characterizes the goldfields of South Africa, consists of a quartzite conglomerate throughout which gold is very finely disseminated.
  • There are several series of parallel beds, interstratified with quartzite and schist, the most important being the "main reef" series.

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