Card No: 3223       Created: 11/09/2001    Last edition: 19/05/2016

Name: OKAYAMALITE
Specification: [1], structure type - melilite
Formula: Ca2SiB2O7
Symmetry Class: tetragonal
Space Group: P 4(-)2(1)m
Unit Cell
Parameters:
a = 7.1248 | c = 4.8177
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 244.56
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 73.65
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.28
R-factor: R = 0.0369MU, 1/cm: µ = 217.580
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 66.268
Theta-Interval for CPDP: T/I = 1-45