| Name: | GYPSUM | ||
| Specification: | [1], structure type - gypsum | ||
| Formula: | CaSO4 · 2H2O | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | *I 2/a | ||
| Unit Cell Parameters: | a = 5.6790 | b = 15.2020 | c = 6.5220 | beta = 118.4300 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 495.15 |
| Number of Atomic Position per full Unit Cell: | P/U = 48 | Molar Volume, cm3/mol: | Vm = 74.56 |
| Number of Reflexes used in Structure Determination: | NR = 610 | X-ray density, g/cm3: | p = 2.31 |
| R-factor: | R = 0.0360 | MU, 1/cm: | µ = 140.204 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 60.727 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||