- PII
- S26584352S0869605525040071-1
- DOI
- 10.7868/S2658435225040071
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume / Issue number 4
- Pages
- 101-112
- Abstract
- This paper presents results of a study of the color of natural spinel from the Goron deposit. Mössbauer spectroscopy, optical absorption and luminescence spectroscopy were used to identify crystal chemical features of Goron spinel. The distribution of main chromophore centers in studied spinel samples was studied and the nature of color of spinel has been revealed. The main color centers are chromium, iron, and manganese ions which are located in tetrahedral and octahedral coordination polyhedra. Additionally, it was established that the main color is affected by exchange interactions of pairs of Fe–Fe ions that interact through a common oxygen ligand. As a result, a complex set of optically active centers was obtained which created a unique color (including the alexandrite effect) in spinel.
- Keywords
- шпинель оптическая спектроскопия мёссбауэровская спектроскопия окраска минералов люминесценция
- Date of publication
- 09.06.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 5
References
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