Card No: 8099       Created: 31/08/2011    Last edition: 22/04/2016

Name: MEREHEADITE
Specification: [1], DN
Formula: Pb47O24(OH)13Cl25[BO3]2[CO3]
Symmetry Class: monoclinic-beta
Space Group: C m
Unit Cell
Parameters:
a = 17.3720 | b = 27.9419 | c = 10.6661 | beta = 93.2000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 5169.56
Number of Atomic Position
per full Unit Cell
:
P/U = 248 Molar Volume, cm3/mol: Vm = 1556.91
Number of Reflexes used in
Structure Determination
:

NR = 6279
X-ray density, g/cm3: p = 7.33
R-factor: R = 0.0580MU, 1/cm: µ = 2189.215
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 298.825
Theta-Interval for CPDP: T/I = 1-45