Card No: 1907       Created: 11/12/1998    Last edition: 13/01/2009

Name: HEIDORNITE
Specification: [1]
Formula: Ca3Na2[SO4]2B2O8(OH)2
Symmetry Class: monoclinic-beta
Space Group: C 2/c
Unit Cell
Parameters:
a = 10.2100 | b = 7.8400 | c = 18.7900 | beta = 93.5000
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 1501.27
Number of Atomic Position
per full Unit Cell
:
P/U = 132 Molar Volume, cm3/mol: Vm = 226.07
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.70
R-factor: R = 0.1150MU, 1/cm: µ = 149.388
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 55.385
Theta-Interval for CPDP: T/I = 1-45