Card No: 5064       Created: 27/03/1998    Last edition: 01/03/2017

Name: URANOPOLYCRASE
Specification: [1], structure type - columbite-tantalite
Formula: (U,Y)(Ti,Nb,Ta)2O6
Symmetry Class: orthorhombic
Space Group: P bcn
Unit Cell
Parameters:
a = 14.5100 | b = 5.5580 | c = 5.1730
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 417.18
Number of Atomic Position
per full Unit Cell
:
P/U = 36 Molar Volume, cm3/mol: Vm = 62.82
Number of Reflexes used in
Structure Determination
:

NR = 227
X-ray density, g/cm3: p = 6.45
R-factor: R = 0.0470MU, 1/cm: µ = 1929.225
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 299.061
Theta-Interval for CPDP: T/I = 1-45