Card No: 3671       Created: 10/04/1992    Last edition: 31/10/2017

Name: PHOSPHOFERRITE
Specification: [1], "distorted" structure type - phosphoferrite
Formula: (Fe,Mn)3[PO4]2 · 3H2O
Symmetry Class: orthorhombic
Space Group: P cn2
Unit Cell
Parameters:
a = 8.6600 | b = 10.0600 | c = 9.4100
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 819.80
Number of Atomic Position
per full Unit Cell
:
P/U = 64 Molar Volume, cm3/mol: Vm = 123.45
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.33
R-factor: -MU, 1/cm: µ = 155.095
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 46.530
Theta-Interval for CPDP: T/I = 1-45