Gems & GemologyGems & Gemology, Fall 2019, Vol. 55, No. 3

Fall 2019 G&G Publication Information

EDITORIAL STAFF

Editor-in-Chief 
Duncan Pay

Editors, Lab Notes 
Thomas M. Moses
Shane F. McClure

Contributing Editors 
James E. Shigley
Raquel Alonso-Perez
Donna Beaton

Managing Editor 
Stuart D. Overlin

Editors, Micro-World 
Nathan Renfro
Elise A. Skalwold
John I. Koivula

Editor-in-Chief Emeritus
Alice S. Keller

Associate Editor
Brooke Goedert

Editors, Gem News 
Emmanuel Fritsch
Gagan Choudhary
Christopher M. Breeding

Customer Service
Martha Erickson
1(760) 603-4502
gandg@gia.edu

Technical Editors
Tao Hsu
Jennifer Stone-Sundberg

Assistant Editor
Erin Hogarth

 

PRODUCTION STAFF

Creative Director
Faizah Bhatti

Photographer
Robert Weldon

Illustrator
Russel Samson

Production and Multimedia Specialist​
Juan Zanahuria

Photo/Video Producer
Kevin Schumacher

 

Multimedia Associate
Christopher Bonine

Video Production
Larry Lavitt
Pedro Padua
Nancy Powers
Albert Salvato
Betsy Winans

 

EDITORIAL REVIEW BOARD

Ahmadjan Abduriyim
Tokyo, Japan

A.J.A. (Bram) Janse
Perth, Australia

George R. Rossman
Pasadena, California

Timothy Adams
San Diego, California

Mary L. Johnson
San Diego, California

Andy Shen
Wuhan, China

Edward W. Boehm
Chattanooga, Tennessee

Anthony R. Kampf
Los Angeles, California

Guanghai Shi
Beijing, China

James E. Butler
Washington, DC

Robert E. Kane
Helena, Montana

James E. Shigley
Carlsbad, California

Alan T. Collins
London, UK

Stefanos Karampelas
Manama, Bahrain​

Elisabeth Strack
Hamburg, Germany

John L. Emmett
Brush Prairie, Washington

Lore Kiefert
Lucerne, Switzerland

Nicholas Sturman
Bangkok, Thailand

Emmanuel Fritsch
Nantes, France

Ren Lu
Wuhan, China

Fanus Viljoen
Johannesburg, South Africa

Eloïse Gaillou
Paris, France

Thomas M. Moses
New York, New York

Wuyi Wang
New York, New York

Gaston Giuliani
Nancy, France

Aaron Palke
Carlsbad, California​

Christopher M. Welbourn
Reading, UK

Jaroslav Hyršl
Prague, Czech Republic

Nathan Renfro
Carlsbad, California

Chunhui Zhou
New York, New York

Dorrit Jacob
Sydney, Australia

Benjamin Rondeau
Nantes, France

J.C. (Hanco) Zwaan
Leiden, The Netherlands​

SUBSCRIPTIONS

Copies of the current issue may be purchased for $29.95 plus shipping. Subscriptions are $79.99 for one year (4 issues) in the U.S. and $99.99 elsewhere. Canadian subscribers should add GST. Discounts are available for renewals, group subscriptions, GIA alumni, and current GIA students. To purchase print subscriptions, visit store.gia.edu or contact Customer Service. For institutional rates, contact Customer Service

DATABASE COVERAGE

Gems & Gemology’s impact factor is 1.844, according to the 2017 Thomson Reuters Journal Citation Reports (issued July 2018). 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:

Academic Search Complete (EBSCO)

Current Abstracts

ProQuest/Cambridge Scientific Abstracts/CSA Illumina

AESIS (Australian Earth Sciences Information System)

Current Contents

Referativnyi Zhurnal

Applied Science & Technology Full Text/Abstracts/Index

GeoArchive

Russian Academy of Sciences Bibliographies

Biography Index

GEOBASE

Scopus/SciVerse (Elsevier)

Book Review Digest Plus

GeoRef

Speleological Abstracts

British Library Document Supply Centre (BLDSC)

Linda Hall Library of Science, Engineering, and Technology

TOC Premier (Table of Contents)

Chemical Abstracts

ingenta

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. Letters on articles published in G&G are also welcome. Please note that Field Reports, Lab Notes, Gem News International, Micro-World, and Charts, and Diamonds from the Deep are not peer-reviewed sections but do undergo technical and editorial review.

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.

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.