Card No: 12189       Created: 11/11/24    Last edition: 27/03/2026

Name: HEMATITE
Specification: [6], structure type - corundum, Ti-analogue, DN
Formula: Fe1.696Ti0.228O3
Symmetry Class: trigonal
Space Group: R 3(-)c
Unit Cell
Parameters:
a = 5.0293 | c = 13.7648
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 301.52
Number of Atomic Position
per full Unit Cell
:
P/U = 36 Molar Volume, cm3/mol: Vm = 30.27
Number of Reflexes used in
Structure Determination
:

NR = 324
X-ray density, g/cm3: p = 5.07
R-factor: R = 0.0179MU, 1/cm: µ = 304.532
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 60.007
Theta-Interval for CPDP: T/I = 1-45