Card No: 6929       Created: 24/01/2007    Last edition: 13/01/2009

Name: VISHNEVITE
Specification: [2], syn, DF
Formula: [K0.51Na3.25Ca0.06][Si3Al3O12][SO4]0.24
Symmetry Class: hexagonal
Space Group: P 6(3)
Unit Cell
Parameters:
a = 12.6850 | c = 5.1790
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 721.70
Number of Atomic Position
per full Unit Cell
:
P/U = 66 Molar Volume, cm3/mol: Vm = 72.45
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.32
R-factor: -MU, 1/cm: µ = 82.411
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 35.498
Theta-Interval for CPDP: T/I = 1-45