Publication:
Different origins of Thai area sapphire and ruby, derived from mineral inclusions and co-existing minerals

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Issued Date

2011

Resource Type

Article

File Type

application/pdf

ISSN

9351221

DOI

10.1127/0935-1221/2011/0023-2123

Other identifier(s)

2-s2.0-80054027975

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

European Journal of Mineralogy. Vol 23, No.4 (2011), p.683-694

Suggested Citation

Saminpanya S., Sutherland F.L. Different origins of Thai area sapphire and ruby, derived from mineral inclusions and co-existing minerals. European Journal of Mineralogy. Vol 23, No.4 (2011), p.683-694. doi:10.1127/0935-1221/2011/0023-2123 Retrieved from: https://hdl.handle.net/20.500.14740/7299

Title

Different origins of Thai area sapphire and ruby, derived from mineral inclusions and co-existing minerals

Author(s)

Saminpanya S.
 Sutherland F.L.

Abstract

Mineral inclusions and coexisting minerals of gem corundum from the Thailand area analysed by SEM-EDS in this study can be divided into sapphire and ruby suites. The sapphire suite includes alkali feldspar (sanidine), nepheline, zircon, hercynite-spinel series and magnetite-hercynite series. The ruby suite includes garnet (pyrope), high-Al diopside ('fassaite') and sapphirine. The mineral chemistry and other data suggest that Thai rubies could have crystallized in high-pressure metamorphic rock of ultramafic/mafic composition. In contrast, Thai area sapphires could have crystallized in high-grade metamorphic (gneissic) rock or from magmas of highly alkaline composition, located at shallower levels in the lithosphere than those hosting the Thai rubies. © 2011 E. Schweizerbart'sche Verlagsbuchhandlung.

Subject(s)

Alkaline rock
 Chemical composition
 Corundum
 Crystallization
 Gemstone
 High pressure
 Host rock
 Mineralogy
 P-T conditions
 Pressure effect
 Ruby
 Sapphire
 Scanning electron microscopy
 Thailand

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URI

https://hdl.handle.net/20.500.14740/7299

Collections

Scopus: Year 1983-2021

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