| Name: | NIOBOKUPLETSKITE | ||
| Specification: | [1], "distorted" structure type - astrophyllite, DN | ||
| Formula: | K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F) | ||
| Symmetry Class: | triclinic | ||
| Space Group: | P 1(-) | ||
| Unit Cell Parameters: | a = 5.4303 | b = 11.9240 | c = 11.7470 | alpha = 112.9270 | beta = 94.7500 | gamma = 103.1750 | ||
| Number of Formula Unit: | Z = 1 | Unit Cell Volume, Å3: | Vc = 669.50 |
| Number of Atomic Position per full Unit Cell: | P/U = 53 | Molar Volume, cm3/mol: | Vm = 403.26 |
| Number of Reflexes used in Structure Determination: | NR = 1779 | X-ray density, g/cm3: | p = 3.42 |
| R-factor: | R = 0.0597 | MU, 1/cm: | µ = 224.317 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 65.551 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||