Card No: 3938       Created: 09/04/1990    Last edition: 27/07/2016

Name: REALGAR
Specification: [1], structure type - realgar
Formula: AsS
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/n
Unit Cell
Parameters:
a = 9.3250 | b = 13.5710 | c = 6.5870 | beta = 106.3800
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 799.75
Number of Atomic Position
per full Unit Cell
:
P/U = 32 Molar Volume, cm3/mol: Vm = 120.43
Number of Reflexes used in
Structure Determination
:

NR = 1205
X-ray density, g/cm3: p = 3.55
R-factor: R = 0.0450MU, 1/cm: µ = 302.382
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 85.108
Theta-Interval for CPDP: T/I = 1-45