Name: | BERZELIANITE | ||

Specification: | [1], structure type - defective fluorite, DF | ||

Formula: | Cu_{1.8}Se | ||

Symmetry Class: | cubic | ||

Space Group: | F m3m | ||

Unit CellParameters: | a = 5.7650 | ||

Number of Formula Unit: | Z = 4 | Unit Cell Volume, Å: ^{3} | V = 191.60_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 44 | Molar Volume, cm: ^{3}/mol | V = 28.85_{m} |

Number of Reflexes used in: Structure Determination | NR = 12 | X-ray density, g/cm^{3}: | p = 6.63 |

R-factor: | R = 0.0310 | MU, 1/cm: | µ = 456.305 |

Wave Length for Calculated: Powder Diffraction Patterns | Cu=1.54056 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 68.780 |

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