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Characterization of Coloured Gemstones by X-ray Micro Computed Tomography
2021
Minerals
The monetary value of gemstones is based on five variables: rarity, cut, weight, color and clarity. The latter refers to internal impurities and defects. Fashion may also dictate demand and price. To enhance some of these features and value, gemstones are treated. Disclosure or nondisclosure thereof has been controversial and affected consumer confidence. Most of these treatments are difficult to detect with the naked eye and accurately quantify with traditional optical and analytical methods.
doi:10.3390/min11020178
fatcat:z5t5i65mfngatfyakmhhtg7sea