Dona M. Dirlam
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
Read MoreGIA, September 29, 2014
Natural gemstones are typically far more valuable than synthetic ones, so being able to identify them correctly is a powerful skill.
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 MoreKarl Schmetzer, September 1, 1990
Physical, chemical, spectroscopic and microscopic characteristics of a sample of hydrothermally grown synthetic aquamarine from the USSR are presented.
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