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Amethyst
The essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings.
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Research
Multi-Color-Zoned Quartz from Brazil
Artificially Induced Color in Amethyst-Citrine Quartz
A new and rather unusual gem material and possible treatments are discussed.
Amethyst Mining in Brazil
Amethystine Chalcedony
Amethyst History and Lore
Amethyst Quality Factors
Amethyst Care and Cleaning Guide
Learn about amethyst's durability and how to care for your amethyst jewelry.
Amethyst Description
Amethyst is the purple variety of the quartz mineral species and the gem most commonly associated with the color purple.
Abstracts; Fall 1991
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.
