Card No: 325       Created: 31/01/1991    Last edition: 04/02/2022

Name: ARMALCOLITE
Specification: [3], structure type - pseudobrookite, syn, at 1100oC
Formula: Fe0.5Mg0.5Ti2O5
Symmetry Class: orthorhombic
Space Group: B bmm
Unit Cell
Parameters:
a = 9.8990 | b = 10.1835 | c = 3.7645
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 379.49
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 57.14
Number of Reflexes used in
Structure Determination
:

NR = 300
X-ray density, g/cm3: p = 3.78
R-factor: R = 0.0780MU, 1/cm: µ = 579.648
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 153.461
Theta-Interval for CPDP: T/I = 1-45