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Figure 2. Rectangular step-cut green beryl from the Volyn pegmatite, 190.00 ct and 28.55 × 39.02 × 21.71 mm, with a rough unpolished table containing etch pits. Faceting and photo by Konstantyn Zalizko.
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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Wallastonite and CaSiO3-breyite in colorless diamond.
Diamond with Cavities Showing Radiation Evidence

Diamond formed at incredible depth shows evidence of radioactive fluids in cavities surrounded by green fluorescence halos.

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Hackmanite/Sodalite from Myanmar and Afghanistan

Significant amounts of gem-quality sodalite/hackmanite—some unusually transparent—have been produced.

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The “Miner’s Fantasy Mine” gem pocket replica highlights various gems and minerals mined in San Diego County.
Hidden Gems at the San Diego Natural History Museum

Each level of the vertical Hidden Gems exhibit offers a different theme at the San Diego Natural History Museum.

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This exhibit features 10 cases demonstrating the importance of the mineral world.
The Year of Mineralogy at the Perot Museum

The Perot Museum of Nature and Science promotes public interest in mineral studies with The Year of Mineralogy exhibit.

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Evan Smith studies images of diamond inclusions on a computer.
Article
Postdoctoral Program Gives Scientists Access to Rare Research Opportunities

GIA’s postdoctoral program gives researchers access to gemological data, equipment and rare, unusual and large gems in its laboratories.

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Ekanite rough and cut stones appear yellowish green in transmitted light.
The Shape of Ekanite

Discusses the unusual surface characteristics of ekanite from secondary deposits in Sri Lanka.

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A coated diamond from Orapa, Botswana.
The Discovery of Davemaoite, the CaSiO3 Perovskite, in a Diamond from Earth’s Lower Mantle

Davemaoite identified in a diamond from Orapa, Botswana.

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Historical objects containing Schneckenstein topaz
Gem Topaz from the Schneckenstein Crag, Saxony, Germany: Mineralogical Characterization and Luminescence

Characterizes yellow topaz from this historical source, with particular emphasis on its photoluminescence behavior.

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Nine Amerindian archaeological objects identified as sudoite
First Identification of Sudoite in Caribbean Ceramic-Age Lapidary Craftsmanship

Extensive analysis of early beads and pendants from archaeological sites in the French islands of the Lesser Antilles identified the objects as sudoite, which has never before been documented in any lapidary production.

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