Card No: 453       Created: 06/09/1990    Last edition: 04/08/2021

Name: BENJAMINITE
Specification: [1], DN
Formula: Cu0.5Pb0.4Ag2.3Bi6.8S12
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 13.2990 | b = 4.0700 | c = 20.2090 | beta = 103.3200
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1064.42
Number of Atomic Position
per full Unit Cell
:
P/U = 44 Molar Volume, cm3/mol: Vm = 320.57
Number of Reflexes used in
Structure Determination
:

NR = 585
X-ray density, g/cm3: p = 6.44
R-factor: R = 0.1070MU, 1/cm: µ = 1326.379
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 206.028
Theta-Interval for CPDP: T/I = 1-45