A sphere with a greasy lustre exhibiting strong phosphorescence is investigated.
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Review of Colors of the Universe: Chinese Hardstone Carvings at New York’s Metropolitan Museum of Art.
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Review of Colors of the Universe: Chinese Hardstone Carvings at New York’s Metropolitan Museum of Art.
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Review of S.K. Samuels’s Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present.
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G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
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A jadeite jade bangle is submitted for lab testing to investigate the possibility of treatment.
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Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.
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Analyses the effects of coating on green jadeite specimens using DiamondView imaging, microscopy, spectroscopy and Raman spectrophotometry.
Read MoreThis section, from the Summer 2012 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 2007 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
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