INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS
Abstract & Details
Research Area
Geology-Gemmology
Keywords
Beryl
heat treatment
Vohambohitra-Ankazobe
Madagascar
aquamarine
gemmology
pegmatite
Abstract
This study examines the impact of heat treatment on beryls extracted from the Bararata and Analakely-Vohambohitra-Ankazobe quarries in the Analamanga region of Madagascar. The samples, initially yellow and green in color, were heated to 400°C to intensify their blue hue. The results show that the reduction of Fe³⁺ to Fe²⁺ in the beryl crystal structure significantly enhances the saturation of blue tones, particularly in aquamarines. However, treatment temperatures that are too high, as observed at 450°C, can lead to complete discoloration of some gems. Strict control of heat treatment parameters is therefore essential to maximize the value of gems while avoiding their degradation. The study also highlights the economic importance of the region's pegmatites, which are rich in beryl and other precious minerals such as quartz and tourmaline
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Author Information
| # | Name | Institute / Affiliation |
|---|---|---|
| 1 | RAZAFIMAROSON Yvan Tommy | Doctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar |
| 2 | RAMIANDRISOA Njararivelo Louisa | Doctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar |
| 3 | RAKOTONDRAZAFY Raymond | Doctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar |
How to Cite
Use the following formats to cite this article in your research.
APA Style
Tommy, RAZAFIMAROSON Yvan, Louisa, RAMIANDRISOA Njararivelo, & Raymond, RAKOTONDRAZAFY (2024). INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS. International Journal of Advance Research and Innovative Ideas In Education, 10(5), 788-794.
MLA Style
Tommy, RAZAFIMAROSON Yvan, et al. "INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS." International Journal of Advance Research and Innovative Ideas In Education, vol. 10, no. 5, 2024, pp. 788-794.
IEEE Style
RAZAFIMAROSON Yvan Tommy, RAMIANDRISOA Njararivelo Louisa, and RAKOTONDRAZAFY Raymond, "INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS," International Journal of Advance Research and Innovative Ideas In Education, vol. 10, no. 5, pp. 788-794, 2024.
Vancouver Style
Tommy RAZAFIMAROSON Yvan, Louisa RAMIANDRISOA Njararivelo, Raymond RAKOTONDRAZAFY. INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS. International Journal of Advance Research and Innovative Ideas In Education. 2024;10(5):788-794.
Harvard Style
Tommy, RAZAFIMAROSON Yvan, Louisa, RAMIANDRISOA Njararivelo, & Raymond, RAKOTONDRAZAFY (2024) 'INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS', International Journal of Advance Research and Innovative Ideas In Education, 10(5), pp. 788-794.
Chicago Style
Tommy, RAZAFIMAROSON Yvan, RAMIANDRISOA Njararivelo Louisa, and RAKOTONDRAZAFY Raymond. "INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS." International Journal of Advance Research and Innovative Ideas In Education 10, no. 5 (2024): 788-794.
Turabian Style
Tommy, RAZAFIMAROSON Yvan, RAMIANDRISOA Njararivelo Louisa, and RAKOTONDRAZAFY Raymond. "INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS." International Journal of Advance Research and Innovative Ideas In Education 10, no. 5 (2024): 788-794.
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