Card No: 4198       Created: 29/09/1997    Last edition: 11/05/2017

Name: SHELDRICKITE
Specification: [1]
Formula: NaCa3[CO3]2F3 · H2O
Symmetry Class: trigonal
Space Group: P 3(2)
Unit Cell
Parameters:
a = 6.7260 | c = 15.0440
Number of Formula Unit: Z = 3Unit Cell Volume, Å3: Vc = 589.40
Number of Atomic Position
per full Unit Cell
:
P/U = 48 Molar Volume, cm3/mol: Vm = 118.34
Number of Reflexes used in
Structure Determination
:

NR = 1205
X-ray density, g/cm3: p = 2.86
R-factor: R = 0.0460MU, 1/cm: µ = 190.339
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 66.598
Theta-Interval for CPDP: T/I = 1-45