Winter 2013 - Volume 49, Issue 4
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Faceted Wurtzite from Tanzania

The rarity and value of faceted wurtzites from Tanzania are sure to draw the attention of gem collectors.

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Demantoid Garnet Fossil Pseudomorphs

In these two extremely rare specimens, demantoid garnet replaced coral and gastropod fossils.

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“Gran Dama” Brooch Featuring Large Melo Pearl

The centerpiece of this brooch is a 98.67 ct Melo pearl, believed to be one of the world's largest.

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Scheelite and Hübnerite Inclusions in Quartz from China

A quartz specimen collected from China's Hunan province contained inclusions of scheelite and hübnerite.

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Bright Yellow Diamonds from Sierra Leone

Examination of strongly yellow diamonds from the Zimmi area of Sierra Leone revealed graphitized feather inclusions.

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Greenish Blue Spodumene

The unusual greenish blue color of this spodumene was the product of irradiation.

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Composite Amber with an Unusual Structure

This 9.12 gram amber composite featured a combination of natural and imitation amber, accompanied by natural and artificial insect inclusions.

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