Card No: 5854       Created: 30/01/2004    Last edition: 17/02/2012

Name: CROCOITE
Specification: [4], structure type - barite, at 1073oK
Formula: PbCrO4
Symmetry Class: orthorhombic
Space Group: P nma
Unit Cell
Parameters:
a = 8.7986 | b = 5.7342 | c = 7.2740
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 366.99
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 55.26
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 5.85
R-factor: -MU, 1/cm: µ = 1127.646
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