Card No: 3305       Created: 05/04/2002    Last edition: 29/03/2015

Name: FORSTERITE
Specification: [65], structure type - olivine, analogue
Formula: (Co,Ni,Zn)2SiO4
Symmetry Class: orthorhombic
Space Group: P bnm
Unit Cell
Parameters:
a = 4.7564 | b = 10.2283 | c = 5.9696
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 290.42
Number of Atomic Position
per full Unit Cell
:
P/U = 28 Molar Volume, cm3/mol: Vm = 43.73
Number of Reflexes used in
Structure Determination
:

NR = 1487
X-ray density, g/cm3: p = 4.86
R-factor: R = 0.0250MU, 1/cm: µ = 222.967
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 45.851
Theta-Interval for CPDP: T/I = 1-45