Card No: 10561       Created: 23/07/18    Last edition: 09/10/2018

Name: ARMENITE
Specification: [3], structure type - armenite, DN
Formula: BaCa2Al6Si9O30 · 2H2O
Symmetry Class: orthorhombic
Space Group: P nc2
Unit Cell
Parameters:
a = 18.6600 | b = 10.6970 | c = 13.8740
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 2769.33
Number of Atomic Position
per full Unit Cell
:
P/U = 204 Molar Volume, cm3/mol: Vm = 417.02
Number of Reflexes used in
Structure Determination
:

NR = 4275
X-ray density, g/cm3: p = 2.76
R-factor: R = 0.0360MU, 1/cm: µ = 210.610
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 76.314
Theta-Interval for CPDP: T/I = 1-45