Card No: 1223       Created: 03/06/1991    Last edition: 05/04/2015

Name: DIOPSIDE
Specification: [49], structure type - diopside, analogue
Formula: (Na,Ca)(Sc,Zn)Si2O6
Symmetry Class: monoclinic-beta
Space Group: C 2/c
Unit Cell
Parameters:
a = 9.8111 | b = 8.9854 | c = 5.2649 | beta = 105.8620
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 446.46
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 67.23
Number of Reflexes used in
Structure Determination
:

NR = 778
X-ray density, g/cm3: p = 3.66
R-factor: R = 0.0250MU, 1/cm: µ = 188.767
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 51.591
Theta-Interval for CPDP: T/I = 1-45