Dutrowite: New Mineral Species of Tourmaline

Discovered in the Italian Alps, a new mineral species of tourmaline has been named for Dr. Barbara Dutrow in honor of her teaching and research contributions to the field.

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Exceptional Natural Freshwater Pearl

A large, lustrous natural freshwater pearl was displayed by the American Pearl Company at this year’s AGTA show.

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Exceptional Rough and Cut Blue Sapphire from Rock Creek, Montana

An untreated blue sapphire rough and a faceted light teal blue sapphire, both of exceptional quality, add to the long-running reputation of Rock Creek for producing beautiful gems.

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GIA Museum’s Tucson Exhibit Receives Two Awards

An exhibit featuring replicas of extraordinary diamonds won GIA’s museum the top awards from two gemology and mineralogy professional groups.

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Jadeite Jade and Serpentine Doublet

When a coating is removed, a carved piece of jadeite jade reveals that it is actually a doublet incorporating the similar-looking material known as serpentine.

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DNA Barcoding and Next-Generation Sequencing (NGS) of Freshwater Pearls

Freshwater pearls are the subject of GIA’s latest research involving the DNA barcoding and next-generation sequencing of biogenic materials.

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Interesting Sapphires from Montana and Australia

Intriguing bicolor sapphires and spectacularly colored thin sapphire slabs are produced by mines in Rock Creek and Inverell, respectively.

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