| Name: | STARKEYITE | ||
| Specification: | [1], structure type - -rozenite, syn | ||
| Formula: | MgSO4 · 4H2O | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | P 2(1)/n | ||
| Unit Cell Parameters: | a = 5.9220 | b = 13.6040 | c = 7.9050 | beta = 90.8500 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 636.78 |
| Number of Atomic Position per full Unit Cell: | P/U = 72 | Molar Volume, cm3/mol: | Vm = 95.89 |
| Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 2.01 |
| R-factor: | - | MU, 1/cm: | µ = 54.954 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 27.388 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||