Card No: 942       Created: 04/09/1998    Last edition: 13/01/2009

Name: CLINOHOLMQUISTITE
Specification: [1], Fe, DF
Formula: Li2(Fe2+,Mg)3Fe3+2Si8O22(OH)2
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 9.4800 | b = 17.8450 | c = 5.2830 | beta = 102.0300
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 874.10
Number of Atomic Position
per full Unit Cell
:
P/U = 94 Molar Volume, cm3/mol: Vm = 263.25
Number of Reflexes used in
Structure Determination
:

NR = 1030
X-ray density, g/cm3: p = 3.43
R-factor: R = 0.0250MU, 1/cm: µ = 281.504
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 82.183
Theta-Interval for CPDP: T/I = 1-45