| Name: | WHERRYITE | ||
| Specification: | [1] | ||
| Formula: | Pb7Cu2[SO4]4[SiO4]2(OH)2 | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | C 2/m | ||
| Unit Cell Parameters: | a = 20.7890 | b = 5.7870 | c = 9.1420 | beta = 91.2700 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 1099.57 |
| Number of Atomic Position per full Unit Cell: | P/U = 82 | Molar Volume, cm3/mol: | Vm = 331.15 |
| Number of Reflexes used in Structure Determination: | NR = 1203 | X-ray density, g/cm3: | p = 6.58 |
| R-factor: | R = 0.0560 | MU, 1/cm: | µ = 1095.518 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 166.598 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||