Red Beryl – Tucson 2014
Red beryl, mined from Utah and displayed in both loose form and in suites of jewelry, were seen at the AGTA show in Tucson.
Fine Corundum, Paraíba Tourmaline, and Alexandrite – Tucson 2014
Updates on the corundum, paraíba tourmaline, and alexandrite markets from the 2014 gem shows in Tucson, Arizona.
Cultured Pearl Market Update – Tucson 2014
Cultured pearl market update from the 2014 gem shows in Tucson, Arizona.
石化的晶洞壳 – 2014 年图森 (英语)
Fossilized gastropod shells, trademarked for use in jewelry, are exhibited at the 2014 Tucson gem shows.
日光石、金红石石英和绿柱石的特殊宝石工艺 — 2014 年图森 (英语)
Stunning examples of gem cutting and design from the GJX Show in Tucson, Arizona.
Natural-Color Tanzanite and Yellow Sapphire – Tucson 2014
Fine unheated tanzanite, untreated yellow sapphire, and heated pink zircon on display at GJX in Tucson.
Varieties of Rutilated Quartz – Tucson 2014
Thanks to its many varieties and rising value, rutilated quartz garnered attention at the 2014 gem shows in Tucson, Arizona.
Polymer-Impregnated Aventurine Quartz, a New Imitation of “Ice Jade”
A bangle, thought to be jadeite jade, is revealed by laboratory testing to be polymer-impregnated aventurine quartz.
Indian Ruby Mining
An overview of ruby mining in the southern Indian states of Tamil Nadu and Karnataka.
Large Oolitic Opal Block
The natural-color oolitic opal is the largest of its type examined by GIA.
Tenebrescent Irradiated Scapolite
The effect of irradiation on scapolite with tenebrescence, a color-change phenomenon that occurs after exposure to UV light.
Fine Australian Chrysoprase Rough and Carvings – Tucson 2014
A report on Australian chrysoprase from the 2014 gem shows in Tucson, Arizona.
Stone and Fossil Photography – Tucson 2014
Yellow Sapphire Filled with Lead Glass
Gem Crystals – Tucson 2014
Mexican Opal – Tucson 2014
Fire opal production at a family-owned mine in Mexico is explored at the 2014 GJX show in Tucson.
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