| Name: | BIOTITE | ||
| Specification: | [3], 2M(1) | ||
| Formula: | K(Mg,Fe)3{[AlSi3]O10}(OH)2 | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | C 2/c | ||
| Unit Cell Parameters: | a = 5.3570 | b = 9.2450 | c = 20.2340 | beta = 94.9780 | ||
| Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å3: | Vc = 998.32 |
| Number of Atomic Position per full Unit Cell: | P/U = 80 | Molar Volume, cm3/mol: | Vm = 150.33 |
| Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 3.12 |
| R-factor: | R = 0.0420 | MU, 1/cm: | µ = 190.295 |
| Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 60.981 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||