Card No: 1387       Created: 06/03/1989    Last edition: 13/06/2017

Name: ESSENEITE
Specification: [1]
Formula: Ca(Fe3+,Al)AlSiO6
Symmetry Class: monoclinic-beta
Space Group: C 2/c
Unit Cell
Parameters:
a = 9.7900 | b = 8.8220 | c = 5.3700 | beta = 105.8100
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 446.25
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 67.20
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.50
R-factor: -MU, 1/cm: µ = 319.762
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 91.281
Theta-Interval for CPDP: T/I = 1-45