Fall 2014 - Volume 50, Issue 3
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Fire Opal
Coated Fire Opal in the Chinese Market

An investigation of a coated fire opal recently found in the Chinese market.

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Topazolite
First Discovery of Topazolite in Mexico

Reports on the first discovery of fine topazolite garnet crystals in Mexico.

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Grayish blue aquamarine
Aquamarine with Unusually Strong Dichroism

This aquamarine's most striking feature was its unusually strong dichroism, displaying very deep blue and pale bluish green colors.

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Garnet Crystal Inclusion Photomicrograph
Color-Change Garnet in Diamond

This diamond contained an inclusion of pyrope-spessartine garnet that appeared grayish green in fluorescent light and purplish red in incandescent light.

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Dr. Gaston Giuliani
IMA General Meeting

A summary of gemological presentations from the 21st IMA General Meeting in Johannesburg.

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Giant Clam Pearl
A Large Baroque Tridacna Gigas (Giant Clam) Pearl

This giant clam pearl was noteworthy for its size and interesting coloration, and its pronounced banding when viewed with transmitted light.

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