Lab Notes Gems & Gemology, Fall 2008, Volume 44, No. 3

Fall 2008 G&G Lab Notes

A Citrine with Eye-Visible Brazil-Law Twinning
Composite of Coral and Plastic
Black Diamonds Colored by Hydrogen Clouds
Irradiated Diamond: An Easy Call
Natural Type Ib Diamond with Unusual Reddish Orange Color
Observed Oddities in Diamond
“Party” Cloud Formation in Diamond
Pinkish Brown Diamond with Mantle-Mineral Inclusions
Large Emerald-in-Quartz Specimen
Calcite “Melt” in Grossular Garnet
A Rare Yellow Trapiche Sapphire
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