Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour
The article presents the results of the first comprehensive study of mineralogical and spectroscopic (IR, PL, EPR) characteristics of diamonds from the Lomonosov mine (Arkhangelskaya pipe) with a unique pink, pink-violet colour. It is shown that all crystals belong to the IaA type, with a total nitr...
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2023-10-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/pmi/article/view/16176?setLocale=en_US |
| _version_ | 1797633074433884160 |
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| author | Galina Yu. Kriulina Sergei V. Vyatkin Evgenii A. Vasilev |
| author_facet | Galina Yu. Kriulina Sergei V. Vyatkin Evgenii A. Vasilev |
| author_sort | Galina Yu. Kriulina |
| collection | DOAJ |
| description | The article presents the results of the first comprehensive study of mineralogical and spectroscopic (IR, PL, EPR) characteristics of diamonds from the Lomonosov mine (Arkhangelskaya pipe) with a unique pink, pink-violet colour. It is shown that all crystals belong to the IaA type, with a total nitrogen content in the range of 500-1500 ppm, with a low degree of aggregation. The colour is heterogeneous, concentrated in narrow twin layers. It is presumably caused by the previously described M2 centres. The colour shade is affected by the content of P1 paramagnetic centres (C-defect). A positive correlation is observed between the colour saturation and the intensity of W7 paramagnetic centres. A convergent model of the formation of pink diamonds is assumed, according to which the determining factors are the ratio and concentration of structural impurities in the diamond, its thermal history, and conditions of plastic deformation, and not the origin of the diamond and the petrochemical properties of its host rocks. |
| first_indexed | 2024-03-11T11:45:37Z |
| format | Article |
| id | doaj.art-799762c179874e7a839b035e7f269c96 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-03-11T11:45:37Z |
| publishDate | 2023-10-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-799762c179874e7a839b035e7f269c962023-11-09T13:31:21ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042023-10-0126371572316176Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colourGalina Yu. Kriulina0https://orcid.org/0009-0009-8495-9289Sergei V. Vyatkin1https://orcid.org/0000-0002-5054-575XEvgenii A. Vasilev2https://orcid.org/0000-0003-2216-0956Lomonosov Moscow State UniversityLomonosov Moscow State UniversityEmpress Catherine II Saint Petersburg Mining UniversityThe article presents the results of the first comprehensive study of mineralogical and spectroscopic (IR, PL, EPR) characteristics of diamonds from the Lomonosov mine (Arkhangelskaya pipe) with a unique pink, pink-violet colour. It is shown that all crystals belong to the IaA type, with a total nitrogen content in the range of 500-1500 ppm, with a low degree of aggregation. The colour is heterogeneous, concentrated in narrow twin layers. It is presumably caused by the previously described M2 centres. The colour shade is affected by the content of P1 paramagnetic centres (C-defect). A positive correlation is observed between the colour saturation and the intensity of W7 paramagnetic centres. A convergent model of the formation of pink diamonds is assumed, according to which the determining factors are the ratio and concentration of structural impurities in the diamond, its thermal history, and conditions of plastic deformation, and not the origin of the diamond and the petrochemical properties of its host rocks.https://pmi.spmi.ru/pmi/article/view/16176?setLocale=en_USdiamondnature of colourphotoluminescencenitrogen centresinfrared spectroscopyelectron paramagnetic resonancearkhangelsk diamond provincelomonosov mine |
| spellingShingle | Galina Yu. Kriulina Sergei V. Vyatkin Evgenii A. Vasilev Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour Записки Горного института diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine |
| title | Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
| title_full | Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
| title_fullStr | Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
| title_full_unstemmed | Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
| title_short | Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
| title_sort | pink violet diamonds from the lomonosov mine morphology spectroscopy nature of colour |
| topic | diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine |
| url | https://pmi.spmi.ru/pmi/article/view/16176?setLocale=en_US |
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