Research Article Search Results

Gold Granulation by Zaffiro

One-of-a-kind gold granulation jewelry by Zaffiro was featured in the AGTA designer showroom.

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Ukrainian Pegmatitic Heliodor and Topaz

Topaz and beryl from the Volyn deposit in Ukraine were popular offerings at this year’s Tucson shows.

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Out of Our Mines

An impressive variety of American stones, including turquoise and variscite, was offered by Out of Our Mines at the AGTA show.

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Unique Sphalerite from Spain

A one-of-a-kind sphalerite is faceted to highlight its distinct regions of iron distribution.

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Quarterly Crystal: Diamond in Diamond

Examination of a South African diamond reveals an eye-visible diamond inclusion.

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Thirty Years Later: “The Royal Tapestry” Revisited

Members of the Piat family gather at the Alfie Norville Gem & Mineral Museum in Tucson to see “The Royal Tapestry” for the first time.

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The Appeal of Non-Nacreous Pearls

Several vendors offered a variety of impressive non-nacreous pearls at the Tucson gem shows.

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Brazilian Watermelon Tourmaline with Iris Effect

A pair of watermelon tourmaline slices from the Cruzeiro mine displays a rainbow of colors.

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Rainbow Rays in Rainbow Lattice Sunstone

Colorful rays of light are observed in an Australian rainbow lattice sunstone.

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Exceptionally Rare Titanoholtite

A stone submitted as dumortierite is identified as rare titanoholtite in the Carlsbad laboratory.

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Patania Jewelry

A look at the diverse jewelry designs from four generations of the Patania family.

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Precious Opal from Pedro II, Brazil

A look at the variety of rough and finished Brazilian opal offered by Prime Gems at the GJX show.

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