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Title: :  STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)
PaperId: :  24884
Published in:   International Journal Of Advance Research And Innovative Ideas In Education
Publisher:   IJARIIE
e-ISSN:   2395-4396
Volume/Issue:    Volume 11 Issue 6 2025
DUI:    16.0415/IJARIIE-24884
Licence: :   IJARIIE is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author NameAuthor Institute
NAMANA D. V University of Antsiranana , MADAGASCAR
FARATIANA RakotonirinaUniversity of Antsiranana , MADAGASCAR
Arvel Christoph RAVOLAHYUniversity of Antsiranana , MADAGASCAR
Vololonirina RASOAMALALAUniversity of Antsiranana , MADAGASCAR
Jeanneney RABEARIVONY University of Antsiranana , MADAGASCAR

Abstract

Mineral Resource
Ambondromifehy , corundum, sapphire, habitus, two-tone, hexagonal dipyramid
Ambondromifehy, Maromokotra quarry, is located in the far north of Madagascar. This work involved carrying out gemological, sapphire chemical and paragenetic studies in this area. Gem corundums are extracted from alkaline basalt environments, secondary deposits in the north of the country (sapphire site). It is rare that the sapphires from Ambondromifehy, quarries of Maromokotra, have a uniform coloring. In our study area, the majority of sapphire is two-tone; The hexagonal dipyramid is the main color of sapphire. It is obvious that the three samples of sapphire taken from these quarries are truly corundum. It follows the gemmological characteristics close to most sapphire having density = 3.98 to 3.99, shock resistance as well as its very bright shine having refractive index: IR = 1.76 to 1.77 with birefringence = 0.009, negative uniaxial. Their transparency and translucency are remarkable. Iron, titanium, and chromium have been proven to be the main culprits in discoloration. We have argued that iron and titanium are predominant in sapphire production in our study region. It is likely that these elements come from the area where rutiles (TiO2) and ilmenites (FeTiO3) live. This is the reason why the Ambondromifehy sapphire has a blue color.

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IJARIIE NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . "STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)" International Journal Of Advance Research And Innovative Ideas In Education Volume 11 Issue 6 2025 Page 1593-1607
MLA NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . "STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)." International Journal Of Advance Research And Innovative Ideas In Education 11.6(2025) : 1593-1607.
APA NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, & Jeanneney RABEARIVONY . (2025). STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR). International Journal Of Advance Research And Innovative Ideas In Education, 11(6), 1593-1607.
Chicago NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . "STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)." International Journal Of Advance Research And Innovative Ideas In Education 11, no. 6 (2025) : 1593-1607.
Oxford NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . 'STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)', International Journal Of Advance Research And Innovative Ideas In Education, vol. 11, no. 6, 2025, p. 1593-1607. Available from IJARIIE, https://ijariie.com/AdminUploadPdf/STUDY_OF_THE_CHEMICAL_ELEMENTS_COMPOSING_THE_COLORING_ROLLS_OF_AMBONDROMIEHY_SAPPHIRE__ANIVORANO_COMMON_IN_THE_DIANA__REGION__MADAGASCAR__ijariie24884.pdf (Accessed : 22 December 2025).
Harvard NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . (2025) 'STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)', International Journal Of Advance Research And Innovative Ideas In Education, 11(6), pp. 1593-1607IJARIIE [Online]. Available at: https://ijariie.com/AdminUploadPdf/STUDY_OF_THE_CHEMICAL_ELEMENTS_COMPOSING_THE_COLORING_ROLLS_OF_AMBONDROMIEHY_SAPPHIRE__ANIVORANO_COMMON_IN_THE_DIANA__REGION__MADAGASCAR__ijariie24884.pdf (Accessed : 22 December 2025)
IEEE NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY , "STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)," International Journal Of Advance Research And Innovative Ideas In Education, vol. 11, no. 6, pp. 1593-1607, Nov-Dec 2025. [Online]. Available: https://ijariie.com/AdminUploadPdf/STUDY_OF_THE_CHEMICAL_ELEMENTS_COMPOSING_THE_COLORING_ROLLS_OF_AMBONDROMIEHY_SAPPHIRE__ANIVORANO_COMMON_IN_THE_DIANA__REGION__MADAGASCAR__ijariie24884.pdf [Accessed : 22 December 2025].
Turabian NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . "STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR)." International Journal Of Advance Research And Innovative Ideas In Education [Online]. volume 11 number 6 (22 December 2025).
Vancouver NAMANA D. V , FARATIANA Rakotonirina, Arvel Christoph RAVOLAHY, Vololonirina RASOAMALALA, and Jeanneney RABEARIVONY . STUDY OF THE CHEMICAL ELEMENTS COMPOSING THE COLORING ROLLS OF AMBONDROMIEHY SAPPHIRE: ANIVORANO COMMON IN THE DIANA REGION (MADAGASCAR). International Journal Of Advance Research And Innovative Ideas In Education [Internet]. 2025 [Cited : 22 December 2025]; 11(6) : 1593-1607. Available from: https://ijariie.com/AdminUploadPdf/STUDY_OF_THE_CHEMICAL_ELEMENTS_COMPOSING_THE_COLORING_ROLLS_OF_AMBONDROMIEHY_SAPPHIRE__ANIVORANO_COMMON_IN_THE_DIANA__REGION__MADAGASCAR__ijariie24884.pdf
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