Card No: 2823       Created: 27/05/1997    Last edition: 13/01/2009

Name: MELILITE
Specification: [3], structure type - melilite, analogue
Formula: Sr2MnSi2O7
Symmetry Class: tetragonal
Space Group: P 4(-)2(1)m
Unit Cell
Parameters:
a = 8.1180 | c = 5.1420
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 338.87
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 102.06
Number of Reflexes used in
Structure Determination
:

NR = 386
X-ray density, g/cm3: p = 3.90
R-factor: R = 0.0430MU, 1/cm: µ = 413.979
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 106.075
Theta-Interval for CPDP: T/I = 1-45