State Gemmological Centre of Ukraine (SGCU)

Scientific practical journal «Precious and Decorative Stones». 2021/N 1 (103)

ISSN 2079-1410

P. Baranov, S. Shevchenko, O. Slyvna. The role of the genetic classification of inclusions in determining the origin and geography of emeralds

DOI: https://doi.org/10.53036/2020-1(103)-2

UDC 549.091

THE ROLE OF THE GENETIC CLASSIFICATION OF INCLUSIONS IN DETERMINING THE ORIGIN AND GEOGRAPHY OF EMERALDS

P. Baranov, Dr Sc. (Geol.), Prof., Forensic Expert, Dnipropetrovsk SRECC MIA of Ukraine, 1 Constructional dead-end street, Dnipro, 49033, Ukraine. E-mail: pn2dsbaranov@gmail.com

S. Shevchenko, Ph.D. (Geol.), As. Prof., Head of the Department, Dnipro University of Technology, 19Yavornytskyyave., Dnipro, 49005, Ukraine. E-mail: shevchenko.s.v@nmu.one

O. Slyvna, Ph.D. (Geol.), As. Prof., Head of the Department, Dnipro University of Technology, 19Yavornytskyyave., Dnipro, 49005, Ukraine. E-mail: shevchenko.s.v@nmu.one

Language: Ukrainian

Precious and Decorative Stones, № 1 (103), 2020: 7-13

Abstract. The article aims to reveal the problem of the genesis and geography of natural emeralds and outline the ways for its solution. The wide development of synthetic analogs, a stunning similarity with natural stones, low cost and unscrupulous sellers make gemologists look for new distinctive criteria in natural emeralds, constantly moving to a higher level of research on microinclusions, internal defects of the crystal lattice with the use of new methods and high-precision equipment. On the example of determined proto-, syn-, epigenetic and secondary inclusions in natural emeralds, the possibility of geographic localization of their deposits is shown. The main types of inclusions in natural emeralds are given. The application of the genetic classification of inclusions to determine the genesis and geography of emerald deposits has been substantiated.

Keywords: emerald, deposit, origin, inclusion, genetic classification.

(Recommended by M. Ryzina, Dr Sc. (Geol.), Prof.)

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