Research Article Search Results

Pinctada maxima Pearls from Operated Mollusks, Sudoite in Ceramic-Age Caribbean Jewelry, Persian Turquoise Field Report, and More

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Dyed Non-Nacreous Pearls

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Internal Structures of Known Pinctada maxima Pearls: Cultured Pearls from Operated Marine Mollusks

A selection of 74 non-bead cultured and 12 bead cultured pearls grown in cultured pearl sacs and harvested directly from operated mollusks were collected and their internal structures examined using real-time microradiography and X-ray computed microtomography analyses.

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Yellow Fluid Inclusions in Transparent Sodalite

A rare transparent and near-colorless sodalite contains two-phase inclusions linking it to its ancient formation.

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Rare Mixed Type IaB-IIb Diamond with a Long-Lasting Phosphorescence

Phosphorescent-based screening initially results in a rare mixed-type natural diamond falsely testing as laboratory-grown.

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Transparent Rhodonite with Clarity Enhancement

A clarity-enhanced rhodonite stuns with its exceptional size, transparency, and vivid color.

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Melo Pearl Found in a Melo Shell

A beautiful melo pearl is accidentally served up for lunch within its host gastropod.

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Iridescent Abalone Shell

The optical phenomenon of iridescence creates a beautiful pearly rainbow effect in an abalone shell.

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Effects of Blue Fluorescence on Diamond Appearance, Color Treatment and Brightening of “Edison” Pearls, and a Pioneering Gemstone Market in Pakistan

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Neptunite Inclusion in Benitoite

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Colorful Inclusions in Diamond

Inclusions can be found in a variety of different gemstones; they create a window that allows the viewer to picture a stone’s formation history.

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Pearl Classification: The GIA 7 Pearl Value Factors

Provides a visual guide to GIA’s approach to classifying and describing pearls.

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