Winter 2023 G&G Publication Information
Editorial Staff
| Editor-in-Chief Duncan Pay |
Editors, Micro-World Nathan Renfro John I. Koivula Tyler Smith |
Editor-in-Chief Emeritus Alice S. Keller |
| Managing Editor Stuart D. Overlin |
Editors, Gem News Gagan Choudhary Christopher M. Breeding Guanghai Shi |
Senior Technical Editor Jennifer Stone-Sundberg |
| Editor Brooke Goedert |
Editors, Colored Stones Unearthed Aaron C. Palke James E. Shigley |
Technical Editor Tao Z. Hsu |
| Associate Editor Erica Zaidman |
Editor, Diamond Reflections Evan M. Smith |
Assistant Editor Erin Hogarth |
| Editors, Lab Notes Thomas M. Moses Shane F. McClure Sally Eaton-Magaña |
Contributing Editors James E. Shigley Raquel Alonso-Perez |
Customer Service (760) 603-4200 gandg@gia.edu |
Production Staff
| Creative Director Faizah Bhatti |
Photo/Video Producer Kevin Schumacher |
Video Production Albert Salvato |
| Production and Multimedia Specialist Michael Creighton |
Photographer Robert Weldon |
|
Editorial Review Board
| Ahmadjan Abduriyim Tokyo, Japan |
Richard W. Hughes Bangkok, Thailand |
George R. Rossman Pasadena, California |
| Timothy Adams San Diego, California |
Jaroslav Hyršl Prague, Czech Republic |
Sudarat Saeseaw Bangkok, Thailand |
| Edward W. Boehm Chattanooga, Tennessee |
Dorrit Jacob Canberra, Australia |
Karl Schmetzer Petershausen, Germany |
| James E. Butler Washington, DC |
A.J.A. (Bram) Janse Perth, Australia |
Andy Shen Wuhan, China |
| Alan T. Collins London, UK |
Mary L. Johnson San Diego, California |
Guanghai Shi Beijing, China |
| Sally Eaton-Magaña Carlsbad, California |
Robert E. Kane Helena, Montana |
James E. Shigley Carlsbad, California |
| John L. Emmett Brush Prairie, Washington |
Stefanos Karampelas Paris, France |
Elisabeth Strack Hamburg, Germany |
| Emmanuel Fritsch Nantes, France |
Lore Kiefert Lucerne, Switzerland |
Nicholas Sturman Bangkok, Thailand |
| Eloïse Gaillou Paris, France |
Simon Lawson Maidenhead, UK |
D. Brian Thompson Florence, Alabama |
| Al Gilbertson Carlsbad, California |
Ren Lu Wuhan, China |
Fanus Viljoen Johannesburg, South Africa |
| Gaston Giuliani Nancy, France |
Thomas M. Moses New York, New York |
Wuyi Wang New York, New York |
| Lee A. Groat Vancouver, Canada |
Laura Otter Canberra, Australia |
Christopher M. Welbourn Reading, UK |
| Yunbin Guan Pasadena, California |
Aaron C. Palke Carlsbad, California |
Chunhui Zhou New York, New York |
| George Harlow New York, New York |
Ilene Reinitz Chicago, Illinois |
J.C. (Hanco) Zwaan Leiden, The Netherlands |
| Peter Heaney University Park, Pennsylvania |
Nathan Renfro Carlsbad, California |
|
About the Cover
Texas topaz, the state’s official gemstone, is valued for its natural blue color. Discovered in 1904, the 925 ct crystal on the cover was formerly displayed in the state capitol building and is now part of the Hamman Gem and Mineral Gallery at the University of Texas at Austin. The 13.8 ct round topaz has a Lone Star cut, faceted to display the five-point star of the state flag. Courtesy of Cub Root (Form to Feeling, Austin, Texas). Photos by Blanca Espinoza.
Printing is by L+L Printers, Carlsbad, CA.
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© 2023 Gemological Institute of America
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ISSN 0016-626X
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Gems & Gemology’ s impact factor is 2.6, according to the 2022 Journal Citation Reports by Clarivate Analytics (issued June 2023). G&G is abstracted in Thomson Reuters products (Current Contents: Physical, Chemical & Earth Sciences and Science Citation Index–Expanded, including the Web of Knowledge) and other databases:
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| TOC Premier (Table of Contents) | Chemical Abstracts | Web of Science |
| CISTI (Canada Institute for Scientific and Technical Information) | Mineralogical Abstracts | Wilson Omni File: Full Text Mega Edition |
| Computers & Applied Sciences Complete | PASCAL (INIST) | Wilson Omni File: Full Text Select |
Manuscript Submissions
Gems & Gemology, a peer-reviewed journal, welcomes the submission of articles on all aspects of the field. Please see the Author Guidelines at www.gia.edu/gems-gemology-author-guidelines or contact the Managing Editor (soverlin@gia.edu). Letters on articles published in G&G are also welcome. Please note that Field Reports, Lab Notes, Gem News International, Micro-World, Colored Stones Unearthed, Diamond Reflections, Charts, and In the Spotlight are not peer-reviewed sections but do undergo technical and editorial review.
Copyright and Reprint Permission
Abstracting is permitted with credit to the source. Libraries are permitted to photocopy beyond the limits of U.S. copyright law for private use of patrons. Instructors are permitted to reproduce isolated articles and photographs/images owned by G&G for noncommercial classroom use without fee. Use of photographs/images under copyright by external parties is prohibited without the express permission of the photographer or owner of the image, as listed in the credits. For other copying, reprint, or republication permission, please contact the Managing Editor (soverlin@gia.edu).
Gems & Gemology is published quarterly by the Gemological Institute of America, a nonprofit educational organization for the gem and jewelry industry.
Any opinions expressed in signed articles are understood to be opinions of the authors and not of the publisher.
