Card No: 402       Created: 21/03/1994    Last edition: 02/07/2021

Name: BARENTSITE
Specification: [1]
Formula: Na7Al[CO3]2[HCO3]2F4
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 6.4720 | b = 6.7350 | c = 8.8060 | alpha = 92.5000 | beta = 97.3300 | gamma = 119.3200
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 329.43
Number of Atomic Position
per full Unit Cell
:
P/U = 30 Molar Volume, cm3/mol: Vm = 198.43
Number of Reflexes used in
Structure Determination
:

NR = 400
X-ray density, g/cm3: p = 2.55
R-factor: R = 0.0370MU, 1/cm: µ = 49.540
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 19.431
Theta-Interval for CPDP: T/I = 1-45