Card No: 4153       Created: 25/05/1988    Last edition: 11/10/2012

Name: SCORODITE
Specification: [1], structure type - variscite
Formula: FeAsO4 · 2H2O
Symmetry Class: orthorhombic
Space Group: P bca
Unit Cell
Parameters:
a = 8.9370 | b = 10.2780 | c = 9.9960
Number of Formula Unit: Z = 8Unit Cell Volume, Å3: Vc = 918.18
Number of Atomic Position
per full Unit Cell
:
P/U = 64 Molar Volume, cm3/mol: Vm = 69.13
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.28
R-factor: -MU, 1/cm: µ = 206.067
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 62.830
Theta-Interval for CPDP: T/I = 1-45