Puzzle-Like Gemstone Designs
An expansive collection of unique gemstone carvings from Steve Walters was on display at the 2022 AGTA show.
Social Media Success for Black Opal Direct
Black Opal Direct’s use of social media increases sales during the COVID-19 pandemic.
Une Découverte Exceptionnelle de Béryls Gemmes à Chaves, District de Vila Real, Portugal [An Exceptional Find of Gemmy Beryls at Chaves, District of Vila Real, Portugal]
The numerous pegmatites in Northern Portugal are known as sources of fine mineral specimens for mineral collectors.
Trade Fair & Play Fair, Says Gem Trade
Consumer confidence and globalization has led to increasing public awareness of how the goods are made and where they are sourced.
Multifacets: Style Yourself with Jewelry
Spring 2013 review of Multifacets: Style Yourself with Jewelry
Colored Stones Cut with High Precision
Rock Buttons from the United States
Exotic Stingray Skin Jewelry
The Ferraccia Jewelry Collection exhibited a huge variety of stingray leather goods at the AGTA show, including bracelets, necklaces, earrings, rings, belts, purses, and mobile phone cases.
Zoned Scapolite from India
“Paraíba”-Type Copper-Bearing Tourmaline from Brazil, Nigeria, and Mozambique: Chemical Fingerprinting By LA-ICP-MS
Gem-quality bright blue to green “Paraíba”-type Cu-bearing tourmaline is now known from deposits in Africa (Nigeria and Mozambique), in addition to three commercial localities in Brazil (in Paraíba and Rio Grande do Norte States).
Trapiche Tourmaline from Zambia
Well-formed crystals of green tourmaline from northwestern Zambia show a growth pattern reminiscent of trapiche emerald/ruby when sliced perpendicular to the c-axis.
Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam
Vietnamese aquamarine is notable for its attractive color and well-formed crystals.
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.
Sapphire from the Mercaderes-Río Mayo Area, Cauca, Colombia
A Preliminary Report on the New Lechleitner Synthetic Ruby and Synthetic Blue Sapphire
A new synthetic ruby and synthetic blue sapphire have been synthesized by Johann Lechleitner of Innsbruck, Austria.
The Gemological Characteristics of Chinese Peridot
Chinese peridot is similar to peridots from other localities.
A Gemological Study of Turquoise in China
Chinese gem-quality turquoise is sky blue, greenish blue, or bluish green in color.
The Sapphires of Mingxi, Fujian Province, China
Blue sapphires from China are similar to gem corundum from Australia, Thailand, and Kampuchea (Camodia).
Infrared Spectroscopy in Gem Identification
The authors describe the new Nicolet 60SX Fourier transform infrared spectrometer recently acquired by GIA's Research Department.
.jpg "YMAL GIA Ed")
