Card No: 3354       Created: 10/09/1990    Last edition: 13/01/2009

Name: ORTHOPINAKIOLITE
Specification: [1], DF
Formula: [Mg1.423Mn2+0.432Fe3+0.22Mn3+0.875]O2[BO3]
Symmetry Class: orthorhombic
Space Group: P nnm
Unit Cell
Parameters:
a = 18.3570 | b = 12.5910 | c = 6.0680
Number of Formula Unit: Z = 16Unit Cell Volume, Å3: Vc = 1402.51
Number of Atomic Position
per full Unit Cell
:
P/U = 152 Molar Volume, cm3/mol: Vm = 52.80
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.97
R-factor: -MU, 1/cm: µ = 78.964
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 19.912
Theta-Interval for CPDP: T/I = 1-45