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http://hdl.handle.net/20.500.12128/15820| Tytuł: | Some complementary data about the spectroscopic properties of manganese ions in spodumene crystals |
| Autor: | Czaja, Maria Lisiecki, Radosław Kądziołka-Gaweł, Mariola Winiarski, Antoni |
| Słowa kluczowe: | pink spodumene; manganese; irradiation effect; optical absorption; luminescence |
| Data wydania: | 2020 |
| Źródło: | "Minerals (Basel)" Vol. 10, iss. 6 (2020), art. no. 554 |
| Abstrakt: | The color change of the pink and colorless LiAlSi2O6 spodumene crystal due to irradiation and heating is explained. The hypothesis about the change of Mn3+ to Mn4+ after irradiation was rejected. For the studied crystals, it was shown that both Mn2+ and Mn3+ occupy the M2 (not the M1) crystal site. Spodumene crystals which are primary pink (kunzite) contain Mn3+ (and Mn2+) at the M1 site. By contrast, those that become pink due to irradiation and heating contain Mn3+ and Mn2+ at the M2 site. The emission band of the former is 625 nm, and for the latter, it is 591 nm. |
| URI: | http://hdl.handle.net/20.500.12128/15820 |
| DOI: | 10.3390/min10060554 |
| ISSN: | 2075-163X |
| Pojawia się w kolekcji: | Artykuły (WNP) |
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