Name: | BERYL | ||

Specification: | [11], anhydrous, structure type - beryl | ||

Formula: | Al_{1.9}Cr_{0.1}[Be_{3}Si_{6}]O_{18} | ||

Symmetry Class: | hexagonal | ||

Space Group: | P 6/mcc | ||

Unit CellParameters: | a = 9.2190 | c = 9.1980 | ||

Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å: ^{3} | V = 677.00_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 58 | Molar Volume, cm: ^{3}/mol | V = 203.89_{m} |

Number of Reflexes used in: Structure Determination | - | X-ray density, g/cm^{3}: | 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,: cm ^{2}/g | µ/p = 34.338 |

Theta-Interval for CPDP: | T/I = 1-45 |