  We discuss the iron and nickel properties in the nuclear X-ray reflecting
region of the Circinus Galaxy, studied with XMM-Newton. The main results are:
a) from the depth of the Fe Kalpha edge, a value of A_Fe=1.7 in number with
respect to the cosmic value (as for Anders & Grevesse 1989) is measured, if the
(not directly visible) illuminating spectrum is assumed to be that measured by
BeppoSAX. If the slope of the primary power law is left free to vary, a steeper
spectrum and a lower iron abundance (about 1.2) are found. b) From the Ni to Fe
Kalpha lines flux ratio, a nickel-to-iron abundance ratio of 0.055-0.075 is
found. c) The Fe Kbeta/Kalpha flux ratio is slightly lower than expected,
possibly due to a mild ionization of iron (which however cannot be much more
ionized than X). d) The presence of the Fe Kalpha Compton Shoulder, already
discovered by Chandra, is confirmed, its relative flux implying Compton-thick
matter. This further supports the identification of the reflecting region with
the absorber.
