Card No: 3264       Created: 18/11/1996    Last edition: 13/01/2009

Name: FORSTERITE
Specification: [43], structure type - olivine, analogue, at 0.23 GPa
Formula: LiScSiO4
Symmetry Class: orthorhombic
Space Group: P bnm
Unit Cell
Parameters:
a = 4.8190 | b = 10.4333 | c = 5.9672
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 300.02
Number of Atomic Position
per full Unit Cell
:
P/U = 28 Molar Volume, cm3/mol: Vm = 45.18
Number of Reflexes used in
Structure Determination
:

NR = 184
X-ray density, g/cm3: p = 3.19
R-factor: R = 0.0370MU, 1/cm: µ = 237.157
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