Card No: 3929       Created: 31/01/1995    Last edition: 28/02/2018

Name: RAMSBECKITE
Specification: [1]
Formula: (Cu,Zn)15(OH)22[SO4]4 · 6H2O
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/a
Unit Cell
Parameters:
a = 16.0888 | b = 15.5760 | c = 7.1020 | beta = 90.2200
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1779.74
Number of Atomic Position
per full Unit Cell
:
P/U = 126 Molar Volume, cm3/mol: Vm = 536.00
Number of Reflexes used in
Structure Determination
:

NR = 1864
X-ray density, g/cm3: p = 3.41
R-factor: R = 0.0430MU, 1/cm: µ = 135.277
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 39.702
Theta-Interval for CPDP: T/I = 1-45