the quarterly journal of the gemological institute of america
Previous IssueWinter 2023 - Volume 59, Issue 4
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the quarterly journal of the gemological institute of america
Texas Topaz, Slovak Opal, a Beryl Inclusions Chart, and More
Duncan Pay, Editor-in-Chief
An overview of the Winter 2023 Gems & Gemology content.
Articles (5)
Topaz from Mason County, Texas
A comprehensive look at Texas topaz, detailing its gemological and compositional characteristics and providing a basis for using trace element concentrations to identify its origin.
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Bohemian Garnets as Decorative Materials for Glass Vessels from the Late Sixteenth to Early Eighteenth Centuries
Examines a technique for setting cut garnets on glass objects, invented by Claudius vom Creutz of Nuremberg in the late sixteenth century.
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A Unique Petrified Tree Fern from Northeast China
Documents the gemological properties, chemical composition, and appearance of petrified tree fern discovered in northeast China.
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Slovak Opal: A New Life for a Historical Gem
Reports on the recent production of precious and common opal from a centuries-old locality.
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Micro-Features of Beryl
Provides a visual guide to the internal features of different varieties of beryl.
Read MoreRegular Features
Gem News International
Global coverage of gem sources, notable new gem materials, and recent industry developments.
View All (15)
Colored Stones Unearthed
Explores the geological concepts related to colored stone formation.
View All (1)Most Valuable Article Awards
Methods and Challenges of Establishing the Geographic Origin of Diamonds
Evan M. Smith, Karen V. Smit, and Steven B. Shirey
A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby
E. Billie Hughes and Wim Vertriest
the archive
past gems & gemology issues
Winter 2023
Volume 59, Issue 4
Fall 2023
Volume 59, Issue 3
Summer 2023
Volume 59, Issue 2
Spring 2023
Volume 59, Issue 1
Winter 2022
Volume 58, Issue 4
Fall 2022
Volume 58, Issue 3
Summer 2022
Volume 58, Issue 2
Spring 2022
Volume 58, Issue 1
Winter 2021
Volume 57, Issue 4
Fall 2021
Volume 57, Issue 3
Summer 2021
Volume 57, Issue 2
Spring 2021
Volume 57, Issue 1
Winter 2020
Volume 56, Issue 4
Fall 2020
Volume 56, Issue 3
Summer 2020
Volume 56, Issue 2
Spring 2020
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Winter 2019
Volume 55, Issue 4
Fall 2019
Volume 55, Issue 3
Summer 2019
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Winter 2018
Volume 54, Issue 4
Fall 2018
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(November-December)
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(November-December)
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(September-October)
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Summer 1934
(July-August)
Volume 1, Issue 4
Summer 1934
(May-June)
Volume 1, Issue 3
Spring 1934
(March-April)
Volume 1, Issue 2
Winter 1934
(January)
Volume 1, Issue 1
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