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Information × Registration Number 0305U001056, 0104U006757 , R & D reports Title Development of new technology of mintral color chenge popup.stage_title Проведення досліджень з розробки методів облагородження мінералів групи кремнезему (агату, халцедону, моріону). Head Ostapenko G, Registration Date 11-01-2005 Organization Institute of magnetism of NASU popup.description2 New methods for upgrading of cryptocrystalline varieties of silica (agates and chalcedonies), as well as dark morion crystals were developed. Green, yellow, orange, red, blue and black samples of agates and chalcedonies were obtained, and morion was altered to decolorized transparent crystals (rock crystal) or specimens of citrine coloration.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close