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.
Demantoid Garnet Fossil Pseudomorphs
In these two extremely rare specimens, demantoid garnet replaced coral and gastropod fossils.
“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.
Greenish Blue Spodumene
The unusual greenish blue color of this spodumene was the product of irradiation.
Scheelite and Hübnerite Inclusions in Quartz from China
A quartz specimen collected from China's Hunan province contained inclusions of scheelite and hübnerite.
Faceted Wurtzite from Tanzania
The rarity and value of faceted wurtzites from Tanzania are sure to draw the attention of gem collectors.
Bright Yellow Diamonds from Sierra Leone
Examination of strongly yellow diamonds from the Zimmi area of Sierra Leone revealed graphitized feather inclusions.