Card No: 1076       Created: 18/04/1990    Last edition: 29/06/2018

Name: CROCOITE
Specification: [3], structure type - monazite
Formula: PbCrO4
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/n
Unit Cell
Parameters:
a = 7.1270 | b = 7.4380 | c = 6.7990 | beta = 102.4300
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 351.97
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 106.00
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 6.10
R-factor: R = 0.0390MU, 1/cm: µ = 1175.779
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 192.843
Theta-Interval for CPDP: T/I = 1-45