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Study on the effect of heat treatment on amethyst color and the cause of coloration
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 significant r...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2020
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7483767/ https://www.ncbi.nlm.nih.gov/pubmed/32913246 http://dx.doi.org/10.1038/s41598-020-71786-1 |