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A Survey of the Gemstone Resources of China

Peter C. Keller and Wang Fuquan, March 1, 1986

China has identified many deposits with significant potential to produce gemstones; various species are discussed.

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GIA Tests Extraterrestrial Gemstones for Down-to-Earth Elements

Russell Shor, Senior Industry Analyst

While scientists speculate about diamond planets hurtling through the galaxy, at least one extraterrestrial gemstone is already among us.

Characterisation of Peridot from Sardinia, Italy

Ilaria Adamo, Rosangela Bocchio, Alessandro Pavese, and Loredana Prosperi

Gem-quality peridot is occasionally found as mantle xenoliths within basalts near Pozzomaggiore.