| Name: | ETTRINGITE | ||
| Specification: | [2], structure type - ettringite, DF | ||
| Formula: | Ca6Al2[SO4]3(OH)12 · 27H2O | ||
| Symmetry Class: | trigonal | ||
| Space Group: | P 31c | ||
| Unit Cell Parameters: | a = 11.1710 | c = 21.3640 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 2308.86 |
| Number of Atomic Position per full Unit Cell: | P/U = 274 | Molar Volume, cm3/mol: | Vm = 695.36 |
| Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 1.93 |
| R-factor: | - | MU, 1/cm: | µ = 86.747 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 45.033 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||