Card No: 8160       Created: 27/01/11    Last edition: 24/02/2015

Name: BEAVERITE-(Zn)
Specification: [1], structure type - alunite
Formula: Pb[Fe2Zn][SO4]2(OH)6
Symmetry Class: trigonal
Space Group: R 3(-)m
Unit Cell
Parameters:
a = 7.3028 | c = 17.0517
Number of Formula Unit: Z = 3Unit Cell Volume, Å3: Vc = 787.55
Number of Atomic Position
per full Unit Cell
:
P/U = 60 Molar Volume, cm3/mol: Vm = 158.12
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 4.30
R-factor: -MU, 1/cm: µ = 565.401
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 131.485
Theta-Interval for CPDP: T/I = 1-45