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Pipi pearls from French Polynesia
Natural Pipi Pearls from Tahiti

An overview of natural "pipi" pearls from French Polynesia.

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Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Summer 2009

This article, from the Summer 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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Article
Aviat Diamonds: A Window into the Deep Lithospheric Mantle Beneath the Northern Churchill Province, Melville Peninsula, Canada

The Aviat kimberlites are located in Melville Peninsula in northeastern Nunavut.

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Article
Carnegie Scientists Use Diamond Presses to Study Planet Formation

Research using diamond presses gives insight to planetary formation

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Article
Copper-Bearing Minerals of Colorado

The state of Colorado has produced some significant copper-bearing mineral specimens.

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Article
Analysis of HPHT-Treated Diamonds Using Fluorescence Observations

Evaluates a potential method of visually identifying HPHT-treated diamonds using microscopy to observe intense fluorescence at the facet edges and junctions.

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Article
In Search of the Perfect Specimen

Vincent Pardieu gives insight into his interest in gems and his experiences in the field

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Article
Gem Olivine and Calcite Mineralization Precipitated from Subduction-Derived Fluids in the Kohistan Arc-Mantle (Pakistan)

Geochemical data presented suggests remobilized CO2 and H2O from a subducted island arc helped form the calcite + olivine-bearing veins in Kohsitan, Pakistan.

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