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Vol 200
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Registration of the faceted gems absorption spectra

E. A. Vasilev
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  • National Mineral Resources University (Mining University)
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There is shown the possibility of recording the visible and infrared absorption  spectra in the faceted gems, including those in jewels. Investigation was carried out with the infrared/visible range spectrometer, equipped with a microscope working in the reflection mode. It is demonstrated the possibility to detect signs of treatment, synthetic origin of diamonds of the main shapes without any sample preparation or removing from jewels.

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