Sharon Bohannon, January 10, 2020
Gem cutters - whether “gem whisperers” or mathematicians - create breathtakingly artistic individual gems and sculptures.
Read MoreSharon Bohannon, March 17, 2017
Circumnavigate the boreal reaches of the globe to explore gems from polar regions.
Read MoreJohn I. Koivula, July 31, 2015
A tourmaline displaying different colours of chatoyancy on opposite sides of a double cabochon is examined.
Read MoreJohn I. Koivula, November 7, 2016
The blue cap termination from a tourmaline crystal was preserved and polished, yielding a unique designer gem.
Read MoreJohn I. Koivula, Kevin Nagle, Andy Hsi-Tien Shen, and Philip Owens
Several transparent, faceted, blue to blue-green copper-bearing tourmalines containing growth tubes and cracks surrounded by sleeves of pink colour were examined for this report.
Read MoreFranz Brandstätter and Gerhard Niedermayr, September 1, 1994
Inclusions of native copper and tenorite (CuO) were found in greyish-green elbaite from São José da Batalha, Paraíba, Brazil.
Read MoreDona M. Dirlam
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
Read MoreBrendan M. Laurs, Thomas W. Overton
This article, from the Winter 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read MoreDona M. Dirlam
This article, from the Spring 1991 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read MorePeter C. Zwaan, June 1, 1982
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
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