Card No: 323       Created: 31/01/1991    Last edition: 04/02/2022

Name: ARMALCOLITE
Specification: [1], structure type - pseudobrookite, syn, at 24oC, before annealing
Formula: Fe0.5Mg0.5Ti2O5
Symmetry Class: orthorhombic
Space Group: B bmm
Unit Cell
Parameters:
a = 9.7762 | b = 10.0341 | c = 3.7504
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 367.90
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 55.40
Number of Reflexes used in
Structure Determination
:

NR = 426
X-ray density, g/cm3: p = 3.90
R-factor: R = 0.0340MU, 1/cm: µ = 597.641
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 153.427
Theta-Interval for CPDP: T/I = 1-45