Card No: 2224       Created: 12/12/1988    Last edition: 21/05/2015

Name: JANHAUGITE
Specification: [1]
Formula: (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2[Si2O7]2O2
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/n
Unit Cell
Parameters:
a = 10.6680 | b = 9.7870 | c = 13.9310 | beta = 107.8200
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 1384.72
Number of Atomic Position
per full Unit Cell
:
P/U = 120 Molar Volume, cm3/mol: Vm = 208.52
Number of Reflexes used in
Structure Determination
:

NR = 4380
X-ray density, g/cm3: p = 3.71
R-factor: R = 0.0310MU, 1/cm: µ = 408.554
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 110.122
Theta-Interval for CPDP: T/I = 1-45