Card No: 1198       Created: 03/04/1989    Last edition: 13/01/2009

Name: DIOPSIDE
Specification: [24], structure type - diopside, Ni-analogue
Formula: CaNiSi2O6
Symmetry Class: monoclinic-beta
Space Group: C 2/c
Unit Cell
Parameters:
a = 9.7340 | b = 8.8910 | c = 5.2280 | beta = 105.8700
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 435.21
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 65.54
Number of Reflexes used in
Structure Determination
:

NR = 1152
X-ray density, g/cm3: p = 3.83
R-factor: R = 0.0470MU, 1/cm: µ = 577.122
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 150.737
Theta-Interval for CPDP: T/I = 1-45