Precious and Decorative



Stones


scientific practical journal
State Gemmological Centre of Ukraine
Ministry of Finance of Ukraine
ISSN: 2079-1410
DOI: 10.53036
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2019: No. 4 (98)  CONTENTS



MICROWORLD OF MINERALS. INCLUSIONS IN RUBIES, BLUE SAPPHIRES, EMERALDS AND ALEXANDRITES

О. Belichenkо
State Gemmological Centre of Ukraine
Yu. Gayevsky
State Gemmological Centre of Ukraine
Yu. Ladzhun
State Gemmological Centre of Ukraine
К. Tatarintseva
State Gemmological Centre of Ukraine
 
Language: Ukrainian
Precious and Decorative Stones. No. 4 (98), 2019: 10–14
Abstract
The main types of inclusions in rubies, blue sapphires, emeralds and alexandrites are described. These inclusions differ in composition (crystalline, fluid), according to the phase ratio (single phase, two phase, multiphase), according to the genetic type (protogenetic, syngenetic and epigenetic). Inclusions are classified by treatment method in the treated inserts and by synthesis method in the synthetic stones. The article is illustrated with photos obtained by microscopic examination of precious stones in SGCU. The studies were performed using a Gemmaster L 230V hemological microscope and immersion microscope «EickhorstGemmoscope».
Keywords: precious stones, rubies, blue sapphires, emeralds, alexandrites, mineral inclusions, microscopic examination.
References
1. Belichenko O. Formation of complex database of diagnostic gemological physical-chemical characteristics of precious gemstones from SGCU collections: Report. Kyiv. 2018. 103 р. [in Ukrainian]
2. Gubelin E.J., Koivula J.I. Photoatlas of inclusions in Gemstones. Zurich: ABC Edition, 1992. 532 р.
3. Gems-inclusions. URL: http://gems-inclusions.com (date of appeal: 26.11.2019).
4. Microworld of gems. URL: http://www.microworldofgems.com/news.php (date of appeal: 26.11.2018).
5. GIA. URL: www.gia.edu (date of appeal: 26.11.2019).
6. Gemmology, Photomicrography and Wildlife Photography. URL: http://anthonydegoutiere.com (date of appeal: 26.11.2019).
7. Belichenko O. Photoatlas of Inclusions in Precious Stones. Kyiv. 2018. 56 р. [in Ukrainian]
 
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