Contribution
Zn-rich magnetoplumbite from Nežilovo, Macedonia
Bermanec, Vladimir; Balen, Dražen; Sčavničar, Stjepan; Tibljas, Darko
European Journal of Mineralogy Volume 5 Number 5 (1993), p. 957 - 960
21 références bibliographiques
publié: Sep 28, 1993
manuscrit accepté: May 5, 1993
manuscrit reçu: Oct 23, 1992
DOI: 10.1127/ejm/5/5/0957
Abstract
Abstract The second world known occurrence of magnetoplumbite is described in dolomitic marbles from Nezilovo (Macedonia). According to electron microprobe analyses and thermogravimetric data the chemical formula is (Pbo.99Cao.o1)(Fe6.12Mn2.53Zn1.89Al1.o3Tio.41Mgo.o2) (O17.78OH0.94); this magnetoplumbite is therefore a Zn-rich variety. The cell dimensions refined from X-ray powder diffraction data are: a = 5.854(1) Å and c = 22.882(6) Å.
Mots-clefs
Zn-rich magnetoplumbite • X-ray powder diffraction data • microprobe analysis • Nezilovo • Macedonia