| Name: | BURPALITE | ||
| Specification: | [1], structure type - cuspidine | ||
| Formula: | Na2CaZrSi2O7F2 | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | P 2(1)/a | ||
| Unit Cell Parameters: | a = 10.1173 | b = 10.4446 | c = 7.2555 | beta = 90.0390 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 766.70 |
| Number of Atomic Position per full Unit Cell: | P/U = 60 | Molar Volume, cm3/mol: | Vm = 115.45 |
| Number of Reflexes used in Structure Determination: | NR = 1419 | X-ray density, g/cm3: | p = 3.38 |
| R-factor: | R = 0.0670 | MU, 1/cm: | µ = 249.332 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 73.861 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||