Card No: 3786       Created: 05/03/1992    Last edition: 13/01/2009

Name: ARMALCOLITE
Specification: [13], structure type - pseudobrookite, at 1200oC
Formula: FeMgTi4O10
Symmetry Class: orthorhombic
Space Group: C mcm
Unit Cell
Parameters:
a = 3.7413 | b = 9.7659 | c = 9.9946
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 365.17
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 54.99
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.90
R-factor: R = 0.0360MU, 1/cm: µ = 556.704
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 142.864
Theta-Interval for CPDP: T/I = 1-45