ラボの記録 Gems & Gemology, Volume 45, No. 4

Winter 2009 G&G Lab Notes


A New Chalcedony Treatment
DiamondView Indicates Treatment in Irradiated Brown-Orange Diamond
Fancy Intense Blue Type IIb Synthetic Diamond
Diamond with Flower-Shaped Cloud
Unusual Trigon-Shaped Clouds Indicate Two Diamonds Cut from the Same Piece of Rough
Colorless Cat’s-Eye Phenakite
Blue Sapphires Diffusion Treated with both Titanium and Beryllium
Interesting Inclusion Aggregate in Tsavorite
Uranium Mineral as Inclusion in Turquoise
 
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