Card No: 7124       Created: 25/05/1989    Last edition: 13/01/2009

Name: PARATACAMITE
Specification: [1]
Formula: Cu2(OH)3Cl
Symmetry Class: trigonal
Space Group: R 3(-)
Unit Cell
Parameters:
a = 6.8270 | c = 14.0410
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 566.75
Number of Atomic Position
per full Unit Cell
:
P/U = 36 Molar Volume, cm3/mol: Vm = 56.90
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.70
R-factor: -MU, 1/cm: µ = 193.897
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 52.404
Theta-Interval for CPDP: T/I = 1-45