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Amber
Amber is nature’s time capsule. This fossilized tree resin contains remnants of life on earth millions of years ago.
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Gem Topaz from the Schneckenstein Crag, Saxony, Germany: Mineralogical Characterization and Luminescence
Characterizes yellow topaz from this historical source, with particular emphasis on its photo luminescence behavior.
Ukrainian Pegmatitic Heliodor and Topaz
Large and Unusual Gems
Finds from the Secondary Market
Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.
Gemstone Durability: Design to Display
Gem-Bearing Pegmatites: A Review
A survey of the current gemological knowledge of pegmatites, including the gem varieties aquamarine, tourmaline, and topaz.
"Modern" Jewelry: Retro to Abstract
Molybdenite in Topaz
Topaz from Mason County, Texas
A comprehensive look at Texas topaz, detailing its gemological and compositional characteristics and providing a basis for using trace element concentrations to identify its origin.
Book Review: Pegmatites and Their Gem Minerals
Review of Pegmatites and Their Gem Minerals, by Michael Menzies and Jeffrey Scovil.
Complex Fluid Inclusion in Topaz
A blue topaz recently examined by the authors contained an interesting and complex fluid-filled negative crystal that revealed some remarkable behavior when cooled down.
Microlite Crystals in Topaz from Pakistan
Aesthetically pleasing inclusions are found in topaz from Pakistan’s Shigar Valley.
