Card No: 5052       Created: 08/07/1992    Last edition: 13/01/2009

Name: UNGURSAITE
Specification: [1]
Formula: [Ca0.94Na0.06][Ta3.86Nb0.13]O10.97
Symmetry Class: hexagonal
Space Group: P 6(3)22
Unit Cell
Parameters:
a = 6.2450 | c = 12.3230
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 416.21
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 125.35
Number of Reflexes used in
Structure Determination
:

NR = 642
X-ray density, g/cm3: p = 7.38
R-factor: R = 0.0320MU, 1/cm: µ = 1004.759
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 136.089
Theta-Interval for CPDP: T/I = 1-45