Card No: 3353       Created: 11/09/1992    Last edition: 20/04/2017

Name: ORTHOERICSSONITE
Specification: [1]
Formula: (Ba,Sr)(Mn,Fe)2(Fe,Ti)Si2O7(O,OH)2
Symmetry Class: orthorhombic
Space Group: P nmn
Unit Cell
Parameters:
a = 20.2300 | b = 6.9790 | c = 5.3920
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 761.27
Number of Atomic Position
per full Unit Cell
:
P/U = 60 Molar Volume, cm3/mol: Vm = 114.64
Number of Reflexes used in
Structure Determination
:

NR = 1626
X-ray density, g/cm3: p = 4.26
R-factor: R = 0.0630MU, 1/cm: µ = 774.442
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 181.922
Theta-Interval for CPDP: T/I = 1-45