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Title: :  INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONS
PaperId: :  25020
Published in:   International Journal Of Advance Research And Innovative Ideas In Education
Publisher:   IJARIIE
e-ISSN:   2395-4396
Volume/Issue:    Volume 10 Issue 5 2024
DUI:    16.0415/IJARIIE-25020
Licence: :   IJARIIE is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author NameAuthor Institute
RAZAFIMAROSON Yvan TommyDoctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar
RAMIANDRISOA Njararivelo LouisaDoctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar
RAKOTONDRAZAFY RaymondDoctoral school of Earth Sciences and Evolution, Faculty of Sciences and Technology, University of Antananarivo, Madagascar

Abstract

Geology-Gemmology
Beryl, heat treatment, Vohambohitra-Ankazobe, Madagascar, aquamarine, gemmology, pegmatite
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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IJARIIE 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 Volume 10 Issue 5 2024 Page 788-794
MLA 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 10.5(2024) : 788-794.
APA RAZAFIMAROSON Yvan Tommy, RAMIANDRISOA Njararivelo Louisa, & RAKOTONDRAZAFY Raymond. (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.
Chicago 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 10, no. 5 (2024) : 788-794.
Oxford 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, 2024, p. 788-794. Available from IJARIIE, https://ijariie.com/AdminUploadPdf/INFLUENCE_OF_HEAT_TREATMENT_ON_BERYLS_FROM_BARARATA_AND_ANALAKELY_VOHAMBOHITRA_ANKAZOBE_QUARRIES__MADAGASCAR__COLOR_IMPROVEMENT_AND_GEMMOLOGICAL_IMPLICATIONS_ijariie25020.pdf (Accessed : 16 May 2025).
Harvard RAZAFIMAROSON Yvan Tommy, RAMIANDRISOA Njararivelo Louisa, and RAKOTONDRAZAFY Raymond. (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. 788-794IJARIIE [Online]. Available at: https://ijariie.com/AdminUploadPdf/INFLUENCE_OF_HEAT_TREATMENT_ON_BERYLS_FROM_BARARATA_AND_ANALAKELY_VOHAMBOHITRA_ANKAZOBE_QUARRIES__MADAGASCAR__COLOR_IMPROVEMENT_AND_GEMMOLOGICAL_IMPLICATIONS_ijariie25020.pdf (Accessed : 16 May 2025)
IEEE 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, Sep-Oct 2024. [Online]. Available: https://ijariie.com/AdminUploadPdf/INFLUENCE_OF_HEAT_TREATMENT_ON_BERYLS_FROM_BARARATA_AND_ANALAKELY_VOHAMBOHITRA_ANKAZOBE_QUARRIES__MADAGASCAR__COLOR_IMPROVEMENT_AND_GEMMOLOGICAL_IMPLICATIONS_ijariie25020.pdf [Accessed : 16 May 2025].
Turabian 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 [Online]. volume 10 number 5 (16 May 2025).
Vancouver 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 [Internet]. 2024 [Cited : 16 May 2025]; 10(5) : 788-794. Available from: https://ijariie.com/AdminUploadPdf/INFLUENCE_OF_HEAT_TREATMENT_ON_BERYLS_FROM_BARARATA_AND_ANALAKELY_VOHAMBOHITRA_ANKAZOBE_QUARRIES__MADAGASCAR__COLOR_IMPROVEMENT_AND_GEMMOLOGICAL_IMPLICATIONS_ijariie25020.pdf
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INFLUENCE OF HEAT TREATMENT ON BERYLS FROM BARARATA AND ANALAKELY-VOHAMBOHITRA ANKAZOBE QUARRIES, MADAGASCAR COLOR IMPROVEMENT AND GEMMOLOGICAL IMPLICATIONSGeology-GemmologyRAZAFIMAROSON Yvan Tommy Download