Card No: 1490       Created: 19/10/1998    Last edition: 12/01/2022

Name: FERRILOTHARMEYERITE
Specification: [1], structure type - natrochalcite
Formula: Ca(Fe,Zn)2[AsO4]2[OH,H2O]2
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 9.0100 | b = 6.2460 | c = 7.3910 | beta = 115.5200
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 375.36
Number of Atomic Position
per full Unit Cell
:
P/U = 30 Molar Volume, cm3/mol: Vm = 113.05
Number of Reflexes used in
Structure Determination
:

NR = 833
X-ray density, g/cm3: p = 4.17
R-factor: R = 0.0210MU, 1/cm: µ = 306.903
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 73.638
Theta-Interval for CPDP: T/I = 1-45