Summer 2014 - Volume 50, Issue 2
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Cross jewel of gold, turquoise, other gems
GIA Museum Exhibits in New York

A brief look at GIA's permanent museum exhibit at the New York lab and campus.

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Dyed-bone cabochon
Dyed Bone as a Red Coral Imitation

A specimen presenting as red coral is revealed to be dyed bone.

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Bumble bee “jasper” cabochon
Bumble Bee “Jasper” from Indonesia

Bumble Bee jasper, first discovered on Java, exhibited at the Tucson Gem and Mineral Show.

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14 ornaments of coral veneer glued to matrix
Composite Coral Veneer Glued to Artificial Matrix

Items presented as red coral are revealed by testing to be composite coral veneers over an artificial matrix.

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Jewel of purple and green jade
Jewelry Shanghai 2014

An insider look at the May 2014 show, held at the Shanghai Word Expo Exhibition & Convention Center.

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Large moissanite crystal
Record-Size Natural Moissanite Crystals Discovered in Israel

Natural moissanite crystals found in Israel has broken world records, with evidence of larger crystals in the area.

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Prasiolite with Brazil-law twinning in optic-axis direction
Prasiolite with Inclusion Influenced by Brazil-Law Twinning

A prasiolite specimen displaying Brazil-law twinning, usually seen in the amethyst variety of quartz, is examined.

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Jadeite bangle revealing natural inclusions
Jadeite Bangle with the Appearance of Polymer Treatment

A jadeite jade bangle is submitted for lab testing to investigate the possibility of treatment.

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Synthetic ruby in matrix
Assemblage of Synthetic Ruby in Calcite Matrix

Material set in a calcite matrix and represented as natural ruby is proven to be synthetic.

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Two shattuckite specimens
Shattuckite from the DRC

Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.

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