Card No: 3271       Created: 19/11/1996    Last edition: 18/09/2014

Name: FORSTERITE
Specification: [50], structure type - olivine, analogue, at 5.15 GPa
Formula: LiScSiO4
Symmetry Class: orthorhombic
Space Group: P bnm
Unit Cell
Parameters:
a = 4.7535 | b = 10.2864 | c = 5.8895
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 287.98
Number of Atomic Position
per full Unit Cell
:
P/U = 28 Molar Volume, cm3/mol: Vm = 43.36
Number of Reflexes used in
Structure Determination
:

NR = 174
X-ray density, g/cm3: p = 3.32
R-factor: R = 0.0360MU, 1/cm: µ = 247.075
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 74.423
Theta-Interval for CPDP: T/I = 1-45