Card No: 4121       Created: 16/02/1995    Last edition: 24/12/2019

Name: PECTOLITE
Specification: [5], structure type - wollastonite, Mn
Formula: (Ca,Mn)2NaH[SiO3]3
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 7.8500 | b = 6.9700 | c = 6.9300 | alpha = 90.8000 | beta = 94.7000 | gamma = 101.4500
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 370.20
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 111.49
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.11
R-factor: -MU, 1/cm: µ = 265.499
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 85.251
Theta-Interval for CPDP: T/I = 1-45