| Name: | BERYL | ||
| Specification: | [11], anhydrous, structure type - beryl | ||
| Formula: | Al1.9Cr0.1[Be3Si6]O18 | ||
| Symmetry Class: | hexagonal | ||
| Space Group: | P 6/mcc | ||
| Unit Cell Parameters: | a = 9.2190 | c = 9.1980 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 677.00 |
| Number of Atomic Position per full Unit Cell: | P/U = 58 | Molar Volume, cm3/mol: | Vm = 203.89 |
| Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 2.66 |
| R-factor: | R = 0.0430 | MU, 1/cm: | µ = 91.353 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 34.338 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||