Card No: 3075       Created: 22/02/1996    Last edition: 16/02/2012

Name: NATROJAROSITE
Specification: [1], structure type - alunite
Formula: NaFe3[SO4]2(OH)6
Symmetry Class: trigonal
Space Group: R 3(-)m
Unit Cell
Parameters:
a = 7.1900 | c = 16.3300
Number of Formula Unit: Z = 3Unit Cell Volume, Å3: Vc = 731.10
Number of Atomic Position
per full Unit Cell
:
P/U = 78 Molar Volume, cm3/mol: Vm = 146.79
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.34
R-factor: -MU, 1/cm: µ = 413.168
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 123.602
Theta-Interval for CPDP: T/I = 1-45