Name: | SCHMIEDERITE | ||

Specification: | [1] | ||

Formula: | Pb_{2}Cu_{2}(OH)_{4}[SeO_{3}][SeO_{4}] | ||

Symmetry Class: | monoclinic-beta | ||

Space Group: | P 2(1)/m | ||

Unit CellParameters: | a = 9.9220 | b = 5.7120 | c = 9.3960 | beta = 101.9600 | ||

Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å: ^{3} | V = 520.95_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 34 | Molar Volume, cm: ^{3}/mol | V = 156.89_{m} |

Number of Reflexes used in: Structure Determination | - | X-ray density, g/cm^{3}: | p = 5.60 |

R-factor: | R = 0.0580 | MU, 1/cm: | µ = 760.724 |

Wave Length for Calculated: Powder Diffraction Patterns | Cu=1.54056 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 135.733 |

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