2023
Characterization of chrysoberyl and its gemmological varieties by Raman spectroscopy
RYBNIKOVA, Olena; Peter BAČÍK; Pavel UHER; Jana FRIDRICHOVÁ; Bronislava LALINSKÁ-VOLEKOVÁ et. al.Základní údaje
Originální název
Characterization of chrysoberyl and its gemmological varieties by Raman spectroscopy
Autoři
RYBNIKOVA, Olena; Peter BAČÍK; Pavel UHER; Jana FRIDRICHOVÁ; Bronislava LALINSKÁ-VOLEKOVÁ; Monika KUBERNÁTOVÁ a Radek HANUS
Vydání
Journal of Raman Spectroscopy, Wiley, 2023, 0377-0486
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10500 1.5. Earth and related environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.400
Kód RIV
RIV/00216224:14310/23:00131115
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001011821900001
EID Scopus
2-s2.0-85162712658
Klíčová slova česky
Ramanova spektroskopie; chrysoberyl; alexandrite; gemologie
Klíčová slova anglicky
Raman spectroscopy; chrysoberyl; alexandrite gemology
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 1. 2024 14:59, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Various chrysoberyl varieties (non-phenomenal chrysoberyl, alexandrite and cymophane) are gemstones of high demand; therefore, they are subjected to numerous substitutions by other materials and synthetic analogues. To address this issue, non-destructive methods for studying gemstones are highly sought after. Raman spectroscopy is one of the most suitable non-destructive methods for studying gemstones as it requires no sample preparation and does not leave any price-reducing signs on the gemstone surface. The research is focused on Raman spectroscopy application on chrysoberyl identification, differentiation between its varieties, inclusion analysis, and detection of synthetic analogues and imitations. The alexandrite variety can be identified by its broad luminescence band that ranges from 640 to 790 nm (15 625–12 658 cm−1). Synthetic alexandrite has sharper and more intensive bands on the luminescence spectrum, especially 690 and 696 nm (14 492–14 367 cm−1). Rutile inclusions can be distinguished by a broad band 580–640 cm−1 in the Raman spectrum. Imitations of chrysoberyl represented by corundum and colour-changing spessartine was also identified. The orientation of faceted stones can also be determined by specific bands present in the Raman spectrum.