Card No: 8729       Created: 31/01/13    Last edition: 28/02/2017

Name: WINDHOEKITE
Specification: [1], DN
Formula: Ca2Fe3+3[Si8O20](OH)4 · 10H2O
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 14.3190 | b = 17.8250 | c = 5.2420 | beta = 103.5000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1300.98
Number of Atomic Position
per full Unit Cell
:
P/U = 94 Molar Volume, cm3/mol: Vm = 391.81
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.55
R-factor: -MU, 1/cm: µ = 147.649
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 57.974
Theta-Interval for CPDP: T/I = 1-45