Name: | CHRYSOBERYL | ||

Specification: | [5], structure type - chrysoberyl, at 690^{o}C | ||

Formula: | Al_{2}BeO_{4} | ||

Symmetry Class: | orthorhombic | ||

Space Group: | P bnm | ||

Unit CellParameters: | a = 4.4457 | b = 9.4491 | c = 5.5011 | ||

Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å: ^{3} | V = 231.09_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 28 | Molar Volume, cm: ^{3}/mol | V = 34.80_{m} |

Number of Reflexes used in: Structure Determination | NR = 300 | X-ray density, g/cm^{3}: | p = 3.65 |

R-factor: | R = 0.0230 | MU, 1/cm: | µ = 96.890 |

Wave Length for Calculated: Powder Diffraction Patterns | Cu=1.54056 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 26.558 |

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