The second world known occurrence of magnetoplumbite is described in d
olomitic marbles from Nezilovo (Macedonia). According to electron micr
oprobe analyses and thermogravimetric data the chemical formula is b0.
99Ca0.01)(Fe6.12Mn2.53Zn1.89Al1.03Ti0.41Mg0.02) (017.78OH0.94); this m
agnetoplumbite is therefore a Zn-rich variety. The cell dimensions ref
ined from X-ray powder diffraction data are: a = 5.854(1) angstrom and
c = 22.882(6) angstrom.