The Red Hot Gems of Summer
These red, pink and orange hued gems evoke passion and excitement – and are surefire accessories for sultry summer days.
Spinel is a good candidate for the title of “History’s Most Underappreciated Gem.” Some ancient mines that supplied gems for royal courts from Rome to China produced spinel, but it was usually confused with better-known stones like ruby and sapphire.
Examination of red and blue samples of a relatively new flux synthetic spinel from Russia established criteria by which they can be separated from their natural counterparts.
Low levels of radioactivity were found in some greenish yellow to yellow-green (peridot-like) synthetic spinel-and-glass triplets, mirror-backed glass rhinestone chatons, and fully fashioned glass rhinestones.
The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
This article, from the Winter 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
This article, from the Fall 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
From the Summer 1991 issue of Gems & Gemology, a summary of important gemology-related articles published in other journals.