| Name: | AENIGMATITE | ||
| Specification: | [1], structure type - aenigmatite | ||
| Formula: | Na2Fe5TiSi6O20 | ||
| Symmetry Class: | triclinic | ||
| Space Group: | P 1(-) | ||
| Unit Cell Parameters: | a = 10.4060 | b = 10.8130 | c = 8.9260 | alpha = 104.9300 | beta = 96.8700 | gamma = 125.3200 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 744.46 |
| Number of Atomic Position per full Unit Cell: | P/U = 68 | Molar Volume, cm3/mol: | Vm = 224.21 |
| Number of Reflexes used in Structure Determination: | NR = 921 | X-ray density, g/cm3: | p = 3.84 |
| R-factor: | R = 0.0750 | MU, 1/cm: | µ = 236.595 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 61.574 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||