CRYSTALLOGRAPHICALY-CHEMICAL CHARACTERISTICS OF SPHALERITES FROM THE POLYMETALLIC Pb-Zn ORE DEPOSIT KIZEVAK (Raska, Serbia)

With the X-ray, chemical and spectrochemical methods there were investigated monomineral concentrations of sphalerites from the polymetallic Pb-Zn ore deposit Kizevak (Raska, Serbia). These sphalerites are from the different horizons of 670, 690 and 710m. Their colour vary from yellow, brownish-yellow, brown to brownish-red. Obtained crystallographic parameters are within following ranges: a 0 = 5.4184(6) - 5.4195(6)A and V 0 = 159.08(5) - 159.18(6)A 3 . Obtained chemical contents are within following ranges: FeS = 1.29 - 12.28 mol.%; MnS = 0.08 - 0.21 mol.%; CdS = 0.23 - 0.32 mol.%; CuS = 0.01 - 0.30 mol.%; In = 0.0006 - 0.0600 % and Ga = 0.0004 - 0.0090 %. It was confirmed that crystallographic parameters increase with the FeS content and decrease with the CuS content.