| Name: | DARAPIOSITE | ||
| Specification: | [1], structure type - osumilite, Li, Zn | ||
| Formula: | (Mn, Zr,Y)2K(Na,K)2(Li,Zn,Fe)3Si12O30 | ||
| Symmetry Class: | hexagonal | ||
| Space Group: | P 6/mcc | ||
| Unit Cell Parameters: | a = 10.2620 | c = 14.3070 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 1304.80 |
| Number of Atomic Position per full Unit Cell: | P/U = 100 | Molar Volume, cm3/mol: | Vm = 392.96 |
| Number of Reflexes used in Structure Determination: | NR = 447 | X-ray density, g/cm3: | p = 2.88 |
| R-factor: | R = 0.0310 | MU, 1/cm: | µ = 162.413 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 56.439 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||