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Topaz
Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem.
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Research
Imperial Flame Topaz Sculpture
An Imperial topaz rough crystal is carved into a stunning freeform gem.
Molybdenite in Topaz
An unusual host-inclusion association is revealed when a cluster of crystals in a colorless topaz is discovered to be molybdenite.
Books: Geology of Gem Deposits, Second Edition
Review of The Collector's Guide to the Minerals of New York State.
An Unusual Doublet Set in Fine Jewelry
An oval-shaped faceted stone resembling an emerald proved to be a doublet with a beryl top and a topaz bottom.
Summer 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
An Update on Imperial Topaz from the Capao Mine, Minas Gerais, Brazil
The Capão mine is one of the oldest and most productive fully mechanized Imperial topaz mines in the historic Ouro Preto area of Minas Gerais, Brazil.
Gemstone Durability: Design to Display
A treatise on the design, display, care and repair of fine gemstones.
Gem-Bearing Pegmatites: A Review
A survey of the current gemological knowledge of pegmatites, including the gem varieties aquamarine, tourmaline, and topaz.
