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quartzite

• The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.
  
• 卡迪砂岩是岩屑砂岩,由燧石,石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。