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Information × Registration Number 0207U002935, 0104U006124 , R & D reports Title Mineralogic - geochemistry substantiation of rational extraction of rare-metal ores from Azov and Mazurova balka deposites of Azov area. popup.stage_title Head Melnikov V.S., Registration Date 22-02-2007 Organization nstitute of Geochemistry, Mineralogy and Ore Formation popup.description2 The investigation of main ore-forming minerals of the Azov zirconium-rare-earth deposit was performed by different methods (X-ray diffraction and electronic microprobe analysis, optical and electronic microscopy). The results showed that ore-forming minerals had heterohenous structures because of the great number of solid inclusions. The composition of britholite was radically changed under influence of thorium radioactive irradiation and CO2- metasomatism. As a result britholite has transformed into a number of new phases - bastnaesite, amorphous silica-phosphate of rare-earths and calcium (cheralite), quarts and fluorite. The nanocrystalline size of products of brinholite disintegration (bastnaesite, cheralite) provides their reactionary ability. The latter strongly facilitates the extraction of lanthanides from ore-earth ore concentrates. Product Description popup.authors popup.nrat_date 2020-04-02 Close