“…Both samples were dominated by calcite which identified with the diffraction peaks at 2θ = 29.3, 31.7, 36.0, 39.4, 43.2, 47.6, 48.6, and 57.4°, which corresponded to (104), ( 006), ( 110), ( 113), ( 202), ( 018), (116), and (122) sets of planes. The average size of calcite in BKC and ABKC is predicted using the Debye-Scherrer equation [17,28]:…”