Card No: 1865       Created: 08/09/1995    Last edition: 06/04/2022

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 = 3Unit 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 = 0.0250MU, 1/cm: µ = 243.426
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 59.113
Theta-Interval for CPDP: T/I = 1-45