Name: | HELMUTWINKLERITE | ||

Specification: | [1] | ||

Formula: | PbZn_{2}[AsO_{4}]_{2}[OH,H_{2}O]_{2} | ||

Symmetry Class: | triclinic | ||

Space Group: | P 1(-) | ||

Unit CellParameters: | a = 5.6060 | b = 5.6100 | c = 7.6170 | alpha = 70.1900 | beta = 69.9100 | gamma = 69.1800 | ||

Number of Formula Unit: | Z = 1 | Unit Cell Volume, Å: ^{3} | V = 203.77_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 15 | Molar Volume, cm: ^{3}/mol | V = 122.74_{m} |

Number of Reflexes used in: Structure Determination | NR = 662 | X-ray density, g/cm^{3}: | p = 5.28 |

R-factor: | R = 0.0290 | MU, 1/cm: | µ = 743.218 |

Wave Length for Calculated: Powder Diffraction Patterns | Co=1.78892 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 140.836 |

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