Pressed Amber Imitation for “Root Amber”

An examination of a beaded bracelet reveals calcite powder to enhance the imitation of natural root amber.

阅读更多

Update from Mozambique’s Ruby Mines

A field gemology team from GIA provides an update on the ruby mining operations around Montepuez.

阅读更多

Synthetic Sapphire with Rose Channels

Rose channels and twinning planes are observed in light purplish blue synthetic corundum.

阅读更多

Inaugural Turquoise United Conference

A report on the first-ever Turquoise United conference in Albuquerque, New Mexico.

阅读更多

Gemological Characteristics of Low-Temperature “Gel-Filled” Turquoise

阅读更多

Hidden Gems at the San Diego Natural History Museum

Each level of the vertical Hidden Gems exhibit offers a different theme at the San Diego Natural History Museum.

阅读更多

In Memoriam: Andrew Cody

阅读更多

The Year of Mineralogy at the Perot Museum

The Perot Museum of Nature and Science promotes public interest in mineral studies with The Year of Mineralogy exhibit.

阅读更多

您或许还会喜欢

YMAL GIA Ed
了解校园课程和在线教育
Learn About NextGem
GIA NextGem™ 钻石零售 培训
Explore GIA Laboratory Promotional Offers
探索 GIA 鉴定所的促销优惠
Shop the GIA Store
访问 GIA 商店