Card No: 8604       Created: 3/08/12    Last edition: 03/07/2013

Name: THAUMASITE
Specification: [5], syn, at 22oK
Formula: Ca3Si(OH)6CO3SO4 · 12H2O
Symmetry Class: hexagonal
Space Group: P 6(3)
Unit Cell
Parameters:
a = 11.0360 | c = 10.3845
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1095.32
Number of Atomic Position
per full Unit Cell
:
P/U = 122 Molar Volume, cm3/mol: Vm = 329.87
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 1.89
R-factor: -MU, 1/cm: µ = 87.009
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 46.105
Theta-Interval for CPDP: T/I = 1-45