August 15, 2019
We may covet gemstones for their beauty, but their real value lies in what they tell scientists about the extreme forces at work deep underground. Around […]
March 1, 2019
Geologically speaking, precious opal is a rare find. With so few localities producing gem-quality opal, scientists have had some trouble understanding exactly how this material develops. […]
July 15, 2017
In 2014, the International Gem Society (IGS) held an essay contest. Members were asked to write short pieces promoting awareness of colored gemstones. The following essay […]
July 12, 2017
