Chemically pure beryl is colorless, but trace elements give rise to green, blue and pink/red colors.
Read MoreZambia is considered the world’s second most important source of emeralds by value (after Colombia).
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John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.
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An overview of natural "pipi" pearls from French Polynesia.
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Analyzes the gemological and geochemical characteristics of peridot from the Gia Lai province alongside specimens from other localities to gain insight into its formation.
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Examines the mining and the internal, spectroscopic, and chemical features of peridot from this deposit, which possesses a rich olive green color and is available in large sizes.
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A transparent bright orange sapphire from Greenland stands out at the AGTA show in Tucson.
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Alex Vock shares his expertise on natural saltwater nacreous pearls.
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One of the finest specimens of double pseudomorph ikaite-calcite-opal ever unearthed was on display at the Pueblo Gem & Mineral Show.
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Bill and Carl Larson share details about new tourmaline pocket discoveries at the Tourmaline King mine.
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