Research Article Search Results

Fissure with Moiré Pattern in Spinel

A precipitation of an unidentified mineral creates a complex moiré pattern in a fissure of a purple spinel.

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Translucent Ruby Filled with Zinc Glass

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Solid Laboratory-Grown Single-Crystal Diamond Ring

The quality and size of this 4.04 ct CVD-grown diamond ring demonstrate the advancing technology in laboratory-grown diamonds.

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Etch Pits in Heliodor and Green Beryl from the Volyn Pegmatites, Northwest Ukraine: A Diagnostic Feature

Examines dissolution features of heliodor and green beryl from a Ukrainian pegmatite field and offers criteria to distinguish them from samples found in other localities.

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A Red Herring in a Red Garnet

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Rainy Lakeside City in Peridot

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Large Stellate Dislocation in Spinel

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Inclusion Resembling a Gada in Diamond

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Heliodor with a Large Schorl Inclusion

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Spring 2022 Auction Highlights

Large near colorless, blue, and yellow diamonds broke auction records at Christie’s and Sotheby’s in the first half of 2022.

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Combination of Phenomena in Star and Cat’s-Eye Color-Change Sapphire

Both asterism and chatoyancy are observed in a color-change sapphire.

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Gems Formed in Metamorphic Rocks

Gemstones formed in metamorphic environments offer insights into the earth’s history and the evolution of tectonic activity that led to their formation.

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