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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Saint-Petersburg Mining University
2023
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ftdoajarticles:oai:doaj.org/article:799762c179874e7a839b035e7f269c96 2023-12-10T09:46:28+01:00 Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour Galina Yu. Kriulina Sergei V. Vyatkin Evgenii A. Vasilev 2023-10-01T00:00:00Z https://doaj.org/article/799762c179874e7a839b035e7f269c96 EN RU eng rus Saint-Petersburg Mining University https://pmi.spmi.ru/pmi/article/view/16176?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 https://doaj.org/article/799762c179874e7a839b035e7f269c96 Записки Горного института, Vol 263, Pp 715-723 (2023) diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine Mining engineering. Metallurgy TN1-997 article 2023 ftdoajarticles 2023-11-12T01:37:29Z 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. Article in Journal/Newspaper Arkhangelsk Directory of Open Access Journals: DOAJ Articles |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English Russian |
topic |
diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine Mining engineering. Metallurgy TN1-997 |
spellingShingle |
diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine Mining engineering. Metallurgy TN1-997 Galina Yu. Kriulina Sergei V. Vyatkin Evgenii A. Vasilev Pink-violet diamonds from the Lomonosov mine: morphology, spectroscopy, nature of colour |
topic_facet |
diamond nature of colour photoluminescence nitrogen centres infrared spectroscopy electron paramagnetic resonance arkhangelsk diamond province lomonosov mine Mining engineering. Metallurgy TN1-997 |
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. |
format |
Article in Journal/Newspaper |
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 |
title |
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_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_sort |
pink-violet diamonds from the lomonosov mine: morphology, spectroscopy, nature of colour |
publisher |
Saint-Petersburg Mining University |
publishDate |
2023 |
url |
https://doaj.org/article/799762c179874e7a839b035e7f269c96 |
genre |
Arkhangelsk |
genre_facet |
Arkhangelsk |
op_source |
Записки Горного института, Vol 263, Pp 715-723 (2023) |
op_relation |
https://pmi.spmi.ru/pmi/article/view/16176?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 https://doaj.org/article/799762c179874e7a839b035e7f269c96 |
_version_ |
1784889891394420736 |