Card No: 11832       Created: 22/06/23    Last edition: 27/03/2026

Name: CHIHMINGITE
Specification: [2], structure type - spinel
Formula: NiAl2O4
Symmetry Class: cubic
Space Group: *F d3m
Unit Cell
Parameters:
a = 8.0590
Number of Formula Unit: Z = 8Unit Cell Volume, Å3: Vc = 523.41
Number of Atomic Position
per full Unit Cell
:
P/U = 56 Molar Volume, cm3/mol: Vm = 39.41
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 4.48
R-factor: -MU, 1/cm: µ = 236.311
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 52.722
Theta-Interval for CPDP: T/I = 1-45