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Proceedings Paper

Channel structures observed in natural diamonds, synthetic moissanite, and synthetic quartz
Author(s): Taijin Lu; James E. Shigley; John I. Koivula
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Paper Abstract

Internal growth and dissolution features are visual characteristics of some natural, synthetic, and treated gem materials. Open channels or need-like structures are occasionally observed in natural diamond, synthetic moissanite (SiC-6H), and chemically-etched synthetic colorless quartz. The distinguishing features among the channel structures in these materials are compared, and possible formation mechanisms of the channels associated with dislocations or dislocation bundles are discussed.

Paper Details

Date Published: 11 November 2002
PDF: 7 pages
Proc. SPIE 4779, Advanced Characterization Techniques for Optical, Semiconductor, and Data Storage Components, (11 November 2002); doi: 10.1117/12.451719
Show Author Affiliations
Taijin Lu, Gemological Institute of America (United States)
James E. Shigley, Gemological Institute of America (United States)
John I. Koivula, Gemological Institute of America (United States)


Published in SPIE Proceedings Vol. 4779:
Advanced Characterization Techniques for Optical, Semiconductor, and Data Storage Components
Angela Duparré; Bhanwar Singh, Editor(s)

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