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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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The Capão Topaz Deposit, Ouro Preto, Minas Gerais, Brazil
This article examines the history of the Ouro Preto district as well as the geology of the area and occurrence of the topaz.
Sri Lanka: The Gem Island
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
Sphalerite in Topaz
Polished Freeform Topaz Imitating Diamond Rough
Material submitted as a rough diamond is revealed through gemological testing and analysis to be a near-colorless topaz.
Thermal Alteration of Inclusions in "Rutilated" Topaz
Faceted colorless topaz containing acicular inclusions has been offered for sale as
Topaz History and Lore
Most authorities agree that the name topaz comes from Topazios, the old Greek name for a small island in the Red Sea, now called Zabargad. (The island never produced topaz, but it was once a source of peridot, which was confused with topaz before the development of modern mineralogy.)
Topaz Journey
Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem
Irradiated Topaz and Radioactivity
Altering the Color of Topaz
A review of the various techniques in use today to change colorless topaz to a variety of hues.
