Study on the effect of heat treatment on amethyst color and the cause of coloration
Abstract The effect of heat treatment on amethyst color was studied from a new perspective of chromaticity of gemstones and the cause of amethyst coloration was discussed based on the results of X-ray diffraction, ultraviolet–visible spectroscopy. The results show that the amethyst color has no sign...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2020-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-020-71786-1 |