A Large Aquamarine with Unusual Etch Features from Xinjiang, China
Unique natural etch pattern and dissolution cavities are observed in a large aquamarine crystal.
Unusual Glass-and-Quartz Triplet Imitation of Emerald
Three-Rayed Asterism in Quartz
Rare optical phenomenon observed in four star quartz cabochons from Brazil.
Summer 2022 G&G Publication Information
This document provides the publication information for Gems & Gemology
.jpg "YMAL GIA Ed")
