Card No: 927       Created: 23/04/1992    Last edition: 13/01/2009

Name: CLINOENSTATITE
Specification: [3], structure type - pigeonite
Formula: Mg2Si2O6
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/c
Unit Cell
Parameters:
a = 9.6260 | b = 8.8250 | c = 5.1880 | beta = 108.3300
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 418.36
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 63.00
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.19
R-factor: -MU, 1/cm: µ = 101.329
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 31.798
Theta-Interval for CPDP: T/I = 1-45