Belichenko O.

Non-nacreous pearls

Tatarintsev V., Vyshnevska L., Zubarev S.

Reliability of data in the diamond trade. Part II. Analysis of the consequences of manipulating the characteristics of diamonds

Belevtsev O., Andreiev O., Grushchynska O., Bunkevich O.

The natural sapphires research from the SGCU collectionby quantitative X-­ray fluorescence analysis

Belevtsev O., Grushchynska O., Maksyuta O.

Regulations for gemological expertise of precious stones

Geleta&nbs;O., Gorobchyshyn О., Kichnyaev A., Lyashok V., Surova V., Sergiienko I.

Analysis of the main factors that have negative influence due to durability of carbonate natural stones in the architecture of the city of Kyiv

Geleta O., Sergiienko I., Gorobchyshyn О.

Basics of identification of decorative stone brands with the help of virtual standards of petrochemical composition