| Name: | COQUIMBITE | ||
| Specification: | [3] | ||
| Formula: | (Fe,Al)2[SO4]3 · 9H2O | ||
| Symmetry Class: | trigonal | ||
| Space Group: | P 3(-)1c | ||
| Unit Cell Parameters: | a = 10.9370 | c = 17.0813 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 1769.49 |
| Number of Atomic Position per full Unit Cell: | P/U = 188 | Molar Volume, cm3/mol: | Vm = 266.46 |
| Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 2.14 |
| R-factor: | - | MU, 1/cm: | µ = 93.571 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 43.811 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||