In this study, we report the experimental findings of a multi-methodological and comparative investigation of a natural (from the Wah Wah Mountains of Beaver County, Utah) and three synthetic (hydrothermally grown) gem-quality red beryls by means of: gemmological standard testing, laser ablation inductively coupled mass spectroscopy, infrared and Raman spectroscopy, ultraviolet–visible–near infrared absorption spectroscopy, and single-crystal X-ray diffraction. Gemmological, crystallo-chemical, and spectroscopic features of the natural and synthetic stones enabled us to unveil the causes of their color (from red, to purplish-red, or orange-red) and how different and complementary techniques can be efficiently used to discriminate between natural and synthetic materials, based on non-destructive, micro-destructive, and destructive techniques.
A Multi-Methodological Investigation of Natural and Synthetic Red Beryl Gemstones / G.D. Gatta, I. Adamo, A. Zullino, V. Gagliardi, R. Lorenzi, N. Rotiroti, L. Faldi, L. Prosperi. - In: MINERALS. - ISSN 2075-163X. - 12:4(2022 Apr 01), pp. 439.1-439.16. [10.3390/min12040439]
A Multi-Methodological Investigation of Natural and Synthetic Red Beryl Gemstones
G.D. Gatta
Primo
Writing – Original Draft Preparation
;N. RotirotiMembro del Collaboration Group
;
2022
Abstract
In this study, we report the experimental findings of a multi-methodological and comparative investigation of a natural (from the Wah Wah Mountains of Beaver County, Utah) and three synthetic (hydrothermally grown) gem-quality red beryls by means of: gemmological standard testing, laser ablation inductively coupled mass spectroscopy, infrared and Raman spectroscopy, ultraviolet–visible–near infrared absorption spectroscopy, and single-crystal X-ray diffraction. Gemmological, crystallo-chemical, and spectroscopic features of the natural and synthetic stones enabled us to unveil the causes of their color (from red, to purplish-red, or orange-red) and how different and complementary techniques can be efficiently used to discriminate between natural and synthetic materials, based on non-destructive, micro-destructive, and destructive techniques.File | Dimensione | Formato | |
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