Gem-Quality Red Beryl from the Wah Wah Mountains, Utah
The unique mineralogical and gemological character of gem-quality red beryl from Utah.
Beryl Gem Nodules from the Bananal Mine, Minas Gerais, Brazil
Bicolored (aquamarine-morganite) beryl from a 1986 discovery at the Bananal mine is described.
Rubies and Sapphires from Snezhnoe, Tajikistan
This large marble-hosted occurrence in the Pamir Mountains is a potentially productive source of corundum, including ruby with a bright red color reminiscent of “pigeon’s blood” Burmese rubies.
Bohemian Garnet – Today
Red garnets have been mined in the Bohemian Hills of Czechoslovakia since the 16th century.
Research on Gem Feldspar from the Shigatse Region of Tibet
The existence of a natural red andesine deposit in China/Tibet has been the subject of controversy since 2006.
Gem Pegmatites of Minas Gerais, Brazil: The Tourmalines of the Araçuaí Districts
This second article in the series on Minas Gerais describes the major tourmaline deposits which produce some of the finest specimens ever seen.
Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine Deposits
First in a series, this article reviews the exploration for gemstones and mining methods in Minas Gerais, Brazil.
Winter Issue of GIA’s Gems & Gemology Highlights Diamonds
Quarterly professional journal reviews auctions, colored diamonds, emeralds and more
Aquamarine from the Masino-Bregaglia Massif, Central Alps, Italy
Aquamarine from granitic pegmatites of the Masino-Bregaglia Massif, Central Alps, Italy.
Seeing Green: All About Emeralds
Want to see into the future? Be an eloquent speaker? Defeat spells and enchantments? Such is the lore of the emerald.