Figure 2
From: Synthesis and characterization of analcime (ANA) zeolite using a kaolinitic rock

Rietveld refinement plot: Observed ( +) and calculated profiles and difference plot for analcime zeolite (10 h at 170 °C) and corundum NIST 676a with tick marks at the position of the Bragg peaks. From the bottom: analcime zeolite, corundum NIST 676a.