Spring 2010

Gem News International

2010 TUCSON REPORT

COLORED STONES AND ORGANIC MATERIALS
Update on ametrine from the Yuruty mine, Bolivia.
Andradite from China.
Barite from Brazil.
Hanksite as a gem material.
Lepidolite beads from Mozambique.
“Soufflé” freshwater cultured pearls.
“Churrasco quartz” with tourmaline and chamosite inclusions from Brazil.
Cat’s-eye rhodonite.

GNI REGULAR FEATURES

DIAMONDS
A large hydrogen-rich diamond with a cuboid phantom cloud.

COLORED STONES AND ORGANIC MATERIALS
Diopside from Ihosy, Madagascar.
Garnet and zircon from the Solomon Islands.
Tsavorite mining at Namalulu, northern Tanzania.

SYNTHETICS AND SIMULANTS
Treated CVD-grown pink synthetic diamond melee.

TREATMENTS
A Be-diffused sapphire with interesting zoning patterns.
Dyed conch shell beads.

MISCELLANEOUS
Unusual gemstone tapestry.

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