| Name: | WIKLUNDITE | ||
| Specification: | [1] | ||
| Formula: | Pb2(Mn,Zn)3(Fe3+,Mn)2(Mn,Mg)19[AsO3]2[(Si,As)O4]6(OH)18Cl6 | ||
| Symmetry Class: | trigonal | ||
| Space Group: | R 3(-)c | ||
| Unit Cell Parameters: | a = 8.2570 | c = 126.5900 | ||
| Number of Formula Unit: | Z = 6 | Unit Cell Volume, Å3: | Vc = 7474.37 |
| Number of Atomic Position per full Unit Cell: | P/U = 636 | Molar Volume, cm3/mol: | Vm = 750.35 |
| Number of Reflexes used in Structure Determination: | NR = 1290 | X-ray density, g/cm3: | p = 4.10 |
| R-factor: | R = 0.0320 | MU, 1/cm: | µ = 304.408 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 74.202 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||