Name: | CHALCOCITE | ||

Specification: | [1], structure type - chalcocite, DF | ||

Formula: | Cu_{2}S | ||

Symmetry Class: | hexagonal | ||

Space Group: | P 6(3)/mmc | ||

Unit CellParameters: | a = 3.9500 | c = 6.7500 | ||

Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å: ^{3} | V = 91.21_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 14 | Molar Volume, cm: ^{3}/mol | V = 27.47_{m} |

Number of Reflexes used in: Structure Determination | NR = 37 | X-ray density, g/cm^{3}: | p = 5.80 |

R-factor: | R = 0.1800 | MU, 1/cm: | µ = 349.198 |

Wave Length for Calculated: Powder Diffraction Patterns | Cu=1.54056 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 60.181 |

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