Card No: 12227       Created: 6/12/24    Last edition: 27/03/2026

Name: RICKARDITE
Specification: [2], structure type - rickardite, syn, DN
Formula: Cu2.9Te2
Symmetry Class: orthorhombic
Space Group: *P mmn
Unit Cell
Parameters:
a = 4.0067 | b = 3.9790 | c = 6.1120
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 97.44
Number of Atomic Position
per full Unit Cell
:
P/U = 6 Molar Volume, cm3/mol: Vm = 58.69
Number of Reflexes used in
Structure Determination
:

NR = 204
X-ray density, g/cm3: p = 7.48
R-factor: R = 0.0240MU, 1/cm: µ = 1391.627
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 186.088
Theta-Interval for CPDP: T/I = 1-45