Name: | HARRISONITE | ||
Specification: | [1] | ||
Formula: | Ca(Fe,Mg)6[SiO4]2[PO4]2 | ||
Symmetry Class: | trigonal | ||
Space Group: | R 3(-)m | ||
Unit Cell Parameters: | a = 6.2480 | c = 26.8020 | ||
Number of Formula Unit: | Z = 3 | Unit Cell Volume, Å3: | Vc = 906.11 |
Number of Atomic Position per full Unit Cell: | P/U = 81 | Molar Volume, cm3/mol: | Vm = 181.93 |
Number of Reflexes used in Structure Determination: | NR = 752 | X-ray density, g/cm3: | p = 4.12 |
R-factor: | R = 0.0250 | MU, 1/cm: | µ = 243.426 |
Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 59.113 |
Theta-Interval for CPDP: | T/I = 1-45 |