Card No: 4184       Created: 21/02/1991    Last edition: 24/12/2019

Name: SERANDITE
Specification: [1], structure type - wollastonite
Formula: [Mn1.88Ca0.17Mg0.01]NaHSi2.97O9
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 7.6830 | b = 6.8890 | c = 6.7470 | alpha = 90.5300 | beta = 94.1200 | gamma = 102.7500
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 347.29
Number of Atomic Position
per full Unit Cell
:
P/U = 30 Molar Volume, cm3/mol: Vm = 104.59
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.43
R-factor: R = 0.0340MU, 1/cm: µ = 354.853
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 103.557
Theta-Interval for CPDP: T/I = 1-45