| Name: | BEUDANTITE | ||
| Specification: | [1], structure type - alunite, DF | ||
| Formula: | Pb(Fe,Al)3[(As,S)O4]2(OH)6 | ||
| Symmetry Class: | trigonal | ||
| Space Group: | R 3(-)m | ||
| Unit Cell Parameters: | a = 7.3151 | c = 17.0355 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 789.45 |
| Number of Atomic Position per full Unit Cell: | P/U = 75 | Molar Volume, cm3/mol: | Vm = 118.88 |
| Number of Reflexes used in Structure Determination: | NR = 644 | X-ray density, g/cm3: | p = 4.41 |
| R-factor: | R = 0.0370 | MU, 1/cm: | µ = 613.578 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 139.065 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||