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Table 1 Mineral content of raw and purified samples determined by XRD

From: Characterization and purification of Algerian natural bentonite for pharmaceutical and cosmetic applications

Sample Montmorillonite (%) Illite (%) Feldpars (%) Calcite (%) Quartz (%)
RBN 59 5 20 5 11
RBN-1 100 0 0 0 0
Natural Wyoming bentonitea 85 0 0 5 10
Purified Wyoming bentonitea 100 0 0 0 0
  1. aLaribi et al. [32]