Card No: 3501       Created: 26/01/1996    Last edition: 13/01/2009

Name: PAULKERRITE
Specification: [1]
Formula: [K,H2O]2[Mn,Mg]2[Al,Fe,Ti]2Ti[PO4]4(OH,F)2 · 14H2O
Symmetry Class: orthorhombic
Space Group: P bca
Unit Cell
Parameters:
a = 10.4900 | b = 20.7500 | c = 12.4400
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 2707.78
Number of Atomic Position
per full Unit Cell
:
P/U = 260 Molar Volume, cm3/mol: Vm = 407.75
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.30
R-factor: -MU, 1/cm: µ = 178.533
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 77.586
Theta-Interval for CPDP: T/I = 1-45