Card No: 3795       Created: 17/06/1998    Last edition: 13/01/2009

Name: PSEUDOSINHALITE
Specification: [1]
Formula: Mg2Al3O[BO4]2(OH)
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/c
Unit Cell
Parameters:
a = 7.4550 | b = 4.3300 | c = 9.8250 | beta = 110.6800
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 296.72
Number of Atomic Position
per full Unit Cell
:
P/U = 38 Molar Volume, cm3/mol: Vm = 89.36
Number of Reflexes used in
Structure Determination
:

NR = 5216
X-ray density, g/cm3: p = 3.49
R-factor: R = 0.2620MU, 1/cm: µ = 86.180
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 24.673
Theta-Interval for CPDP: T/I = 1-45