title: Inclusions in topaz from miarolitic pegmatites of the Volodarsk-Volynski Massif (Ukraine)--a Raman spectroscopic study.
abstract: The differently coloured (colourless, brown-pinkish and blue-pinkish) crystals of topaz from granitic pegmatites of Volodarsk-Volynsky Massif (VVM) have been investigated by scanning electron microscopy (SEM) and Raman microspectroscopy (RS) methods. Topaz (287, 522, 855, 929 cm(-1)), goethite (390 cm(-1)), pyrite (377-379 cm(-1)), marcasite (397 and 331 cm(-1)) and monazite (460 and 970-1070 cm(-1)) were identified as mineral inclusions in analysed crystals. On the basis of RS spectra some of this inclusions contain also organic matter, represented by carbonaceous matter (D-band at ca. 1320-1340 cm(-1) and G-band at ca. 1590-1600 cm(-1)) and liquid simple hydrocarbons consisting of aliphatic and aromatic groups (1240, 1325 and 1420 cm(-1)). Other solid phases found the host topaz, i.e. quartz, orthoclase, very rare minerals (micas) as lepidolite, zinnwaldite and also beryl and rutile, were identified with SEM-EDS analyses. All these mineral inclusions have been formed by post-magmatic, fluid-induced processes, extended from pegmatite to hydrothermal stages of magma crystallization.
authors.affiliation: Faculty of Geology, Geophysics and Environmental Protection, Department of Mineralogy, Petrography and Geochemistry, AGH-University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland. dumanska@agh.edu.pl
authors.forename: Magdalena
authors.initials: M
authors.lastname: Dumańska-Słowik
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Wesełucha-Birczyńska
authors.forename: Lucyna
authors.initials: L
authors.lastname: Natkaniec-Nowak
mesh_terms: D017607:Aluminum Compounds / Q000032:analysis; D007501:Iron / Q000032:analysis; D058085:Iron Compounds / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D008903:Minerals / Q000032:analysis; D017680:Potassium Compounds / Q000032:analysis; D011791:Quartz / Q000032:analysis; D017640:Silicates / Q000032:analysis / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods; D013440:Sulfides / Q000032:analysis
chemical_list: D017607:Aluminum Compounds; D058085:Iron Compounds; D008903:Minerals; D017680:Potassium Compounds; D017640:Silicates; D013440:Sulfides; C094886:goethite; C011342:pyrite; D011791:Quartz; C016024:orthoclase; D007501:Iron