Card No: 5412       Created: 30/10/2002    Last edition: 02/04/2012

Name: ARAGONITE
Specification: [2], "distorted" structure type - aragonite
Formula: CaCO3
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 5.7394 | b = 4.9616 | c = 7.9700 | alpha = 89.9990 | beta = 90.0120 | gamma = 89.9960
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 226.96
Number of Atomic Position
per full Unit Cell
:
P/U = 20 Molar Volume, cm3/mol: Vm = 34.18
Number of Reflexes used in
Structure Determination
:

NR = 2794
X-ray density, g/cm3: p = 2.93
R-factor: R = 0.0560MU, 1/cm: µ = 207.726
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 70.939
Theta-Interval for CPDP: T/I = 1-45