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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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Ukrainian Pegmatitic Heliodor and 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.
Unusual Glass-and-Quartz Triplet Imitation of Emerald
Topaz Crystals in Red Beryl
“Boomerang” Inclusion in a Rough Topaz
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.
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.
Designs from Erica Courtney
Erica Courtney has been adorning Hollywood stars for the red carpet for decades. Her eye for color and bringing out a stone’s beauty are immediately apparent.
Quarterly Crystal:Mystery in Topaz
A topaz hosting a group of inclusions is examined in the Carlsbad lab.
Quarterly Crystal: Triplite in Topaz
The first triplite inclusion in a topaz host is examined.
