Card No: 1179       Created: 26/06/1990    Last edition: 13/01/2009

Name: DIOPSIDE
Specification: [5], structure type - diopside, at 400oC
Formula: CaMgSi2O6
Symmetry Class: monoclinic-beta
Space Group: C 2/c
Unit Cell
Parameters:
a = 9.7760 | b = 8.9790 | c = 5.2670 | beta = 105.9400
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 444.55
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 66.94
Number of Reflexes used in
Structure Determination
:

NR = 733
X-ray density, g/cm3: p = 3.23
R-factor: R = 0.0750MU, 1/cm: µ = 178.326
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 55.133
Theta-Interval for CPDP: T/I = 1-45