Card No: 12027       Created: 25/04/24    Last edition: 28/03/2026

Name: FRANKSOUSAITE
Specification: [1], structure type - linarite
Formula: PbCu(Se,S)O4(OH)2
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/m
Unit Cell
Parameters:
a = 9.8208 | b = 5.7340 | c = 4.7498 | beta = 102.7000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 260.95
Number of Atomic Position
per full Unit Cell
:
P/U = 22 Molar Volume, cm3/mol: Vm = 78.59
Number of Reflexes used in
Structure Determination
:

NR = 1016
X-ray density, g/cm3: p = 5.61
R-factor: R = 0.0200MU, 1/cm: µ = 750.550
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 133.681
Theta-Interval for CPDP: T/I = 1-45