Card No: 12246       Created: 13/02/25    Last edition: 31/03/2026

Name: DONGCHUANITE
Specification: [1], structure type - dongchuanite
Formula: Pb4(Zn,Cu)Zn2[(P,As)O4]2[PO4]2(OH)2
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 4.7620 | b = 8.5070 | c = 10.3641 | alpha = 97.1000 | beta = 101.5000 | gamma = 92.3000
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 407.42
Number of Atomic Position
per full Unit Cell
:
P/U = 29 Molar Volume, cm3/mol: Vm = 245.40
Number of Reflexes used in
Structure Determination
:

NR = 1360
X-ray density, g/cm3: p = 5.98
R-factor: R = 0.0700MU, 1/cm: µ = 1233.908
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 206.263
Theta-Interval for CPDP: T/I = 1-45