| Name: | FREDRIKSSONITE | ||
| Specification: | [1], structure type - ludwigite | ||
| Formula: | [Mg1.98Fe0.02][Mn0.78Fe0.2Al0.02][BO3]O2 | ||
| Symmetry Class: | orthorhombic | ||
| Space Group: | P bam | ||
| Unit Cell Parameters: | a = 9.1980 | b = 12.5280 | c = 2.9650 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 341.66 |
| Number of Atomic Position per full Unit Cell: | P/U = 36 | Molar Volume, cm3/mol: | Vm = 51.45 |
| Number of Reflexes used in Structure Determination: | NR = 555 | X-ray density, g/cm3: | p = 3.79 |
| R-factor: | R = 0.0240 | MU, 1/cm: | µ = 98.059 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 25.844 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||