| Name: | LAMPROPHYLLITE | ||
| Specification: | [3], structure type - lamprophyllite | ||
| Formula: | (Sr,Na,Ca)2Na(Na,Mn,Fe,Mg)2Ti3O2[Si2O7]2(OH)2 | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | C 2/m | ||
| Unit Cell Parameters: | a = 19.2150 | b = 7.0610 | c = 5.3719 | beta = 96.7970 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 723.72 |
| Number of Atomic Position per full Unit Cell: | P/U = 60 | Molar Volume, cm3/mol: | Vm = 217.96 |
| Number of Reflexes used in Structure Determination: | NR = 688 | X-ray density, g/cm3: | p = 3.49 |
| R-factor: | R = 0.0400 | MU, 1/cm: | µ = 389.394 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 111.533 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||