Volume contains abstracts of the International scientific conference «Annual Meeting of the Russian Mineralogical Society combined with the Fedorov Session 2012». The aim of the conference is to discuss recent progress, general problems and future trends of mineralogy, petrology and crystallography. Scientific sessions: (1) mineralogy of rare metal and rare earth deposits; (2) mineralogical and petrological markers of the mineral/rock genesis; minerals, ores and rocks as fingerprint; (3) environmental mineralogy and geochemistry; (4) new methods and equipment for investigation of minerals, rocks and ores; (5) mineralogical crystallography and crystal chemistry; (6) history of mineralogy, crystallography and petrology.