Card No: 11905       Created: 31/07/23    Last edition: 27/03/2026

Name: FRANKLINITE
Specification: [18], structure type - spinel, syn
Formula: [Zn02Fe0.8][Co0.8Fe1.2]O4
Symmetry Class: cubic
Space Group: F d3m
Unit Cell
Parameters:
a = 8.4430
Number of Formula Unit: Z = 8Unit Cell Volume, Å3: Vc = 601.85
Number of Atomic Position
per full Unit Cell
:
P/U = 56 Molar Volume, cm3/mol: Vm = 45.31
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 5.21
R-factor: -MU, 1/cm: µ = 218.825
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 42.038
Theta-Interval for CPDP: T/I = 1-45