Name: | NATROJAROSITE | ||
Specification: | [4], structure type - alunite, syn | ||
Formula: | (Na,K)Fe3[SO4]2(OH)6 | ||
Symmetry Class: | trigonal | ||
Space Group: | R 3(-)m | ||
Unit Cell Parameters: | a = 7.3254 | c = 16.7209 | ||
Number of Formula Unit: | Z = 3 | Unit Cell Volume, Å3: | Vc = 777.06 |
Number of Atomic Position per full Unit Cell: | P/U = 78 | Molar Volume, cm3/mol: | Vm = 156.02 |
Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 3.18 |
R-factor: | - | MU, 1/cm: | µ = 161.208 |
Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 50.709 |
Theta-Interval for CPDP: | T/I = 1-45 |