Open Access
Table 4
Peak-search report of the palm leaves, after combustion.
2-Theta | d (A°) | BG | Height | I% | Area | I% | FWHM | Crystal structure with space group | Phase |
---|---|---|---|---|---|---|---|---|---|
21.998 | 4.0373 | 5231 | 521 | 16.4 | 47257 | 69.8 | 1.103 | Triclinic-powder diffraction | Caoxite, C2H6CaO7 |
22.179 | 4.0048 | 5192 | 646 | 20.4 | 57795 | 85.3 | 1.087 | Monoclinic-(Unknown), P21 (4) | C14H10 (colorless, light gray, white) |
22.457 | 3.9558 | 5110 | 738 | 23.3 | 66256 | 97.8 | 1.091 | Rhombohedral-powder diffraction, R3m | Hatrurite, syn Ca3SiO5 |
22.623 | 3.9271 | 5084 | 718 | 22.6 | 60055 | 88.6 | 1.017 | Triclinic-powder diffraction | Caoxite, syn C2H6CaO7 |
37.555 | 2.3930 | 2016 | 2029 | 63.9 | 44222 | 65.3 | 0.265 | Tetragonal-(Unknown), P41212 | Formicaite Ca(HCO2)2 (light blue, white) |
43.799 | 2.0652 | 1613 | 3174 | 100.0 | 67744 | 100.0 | 0.259 | Hexagonal-powder diffraction, P63/mmc | Lonsdaleite, syn (C) |
77.296 | 1.2334 | 565 | 2070 | 65.2 | 62866 | 92.8 | 0.369 | Tetragonal-powder diffraction, P41212 | Cristobalite, SiO2 (colorless) |
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