Name: | OMPHACITE | ||
Specification: | [2], structure type - omphacite | ||
Formula: | (Ca,Na)(Mg,Al,Fe)Si2O6 | ||
Symmetry Class: | monoclinic-beta | ||
Space Group: | P 2/n | ||
Unit Cell Parameters: | a = 9.5850 | b = 8.7760 | c = 5.2600 | beta = 106.8500 | ||
Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 423.46 |
Number of Atomic Position per full Unit Cell: | P/U = 40 | Molar Volume, cm3/mol: | Vm = 63.77 |
Number of Reflexes used in Structure Determination: | NR = 955 | X-ray density, g/cm3: | p = 3.36 |
R-factor: | R = 0.0580 | MU, 1/cm: | µ = 226.052 |
Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 67.233 |
Theta-Interval for CPDP: | T/I = 1-45 |