Spring 2024 G&G Publication Information
This document provides the publication information for Gems & Gemology
Butterfly Brooch Showcasing East African Gems
A brooch adorned with 49 East African Gems was on display at the AGTA show.
Cummingtonite Needles Encased by Quartz in a Rhodonite
An observed inclusion association pattern may provide a new perspective on the origin of curved inclusions in rhodonite.
Challenges in Identifying Drilled Keshi Pearls
GIA’s Mumbai laboratory studies a lot consisting of 40 pearls to aid in distinguishing natural from non-bead cultured pearls.
Green Amber from Ethiopia
Rare green amber from the Amhara region of Ethiopia was available at the Pueblo Gem & Mineral Show.
Identification of Chromium-Bearing Red Gemstones Using Photoluminescence: A Red Musgravite Case Study
An investigation using PL spectroscopy to identify chromium-bearing red gemstones.
Montana Sapphire at Obsessed Over Gems
Obsessed Over Gems offered an array of unheated Montana sapphires in a range of hues, cuts, and sizes at the AGTA show.
New Sapphire Material from Kashmir
A look at newly found Kashmir sapphire exhibited at the AGTA show.
Cloud Inclusions Causing Fancy Light Blue Color in Diamond
The New York laboratory reports on the cause of color in a Fancy Light grayish blue diamond.
Dual-Color Double Chatoyancy in Emerald
An emerald displaying dual-color light green and white double chatoyancy is examined in the Tokyo laboratory.
“Lily Pad” Structure in an Orangy Yellow Pearl
An orangy yellow pearl featuring a unique acicular feature is examined at the Mumbai laboratory.
Natural Orange Diamond with Unusual Absorption Features
Two diamonds analyzed in the New York laboratory lead to a newly identified cause of orange color.
Vaterite in Freshwater Natural Shell Blister
A baroque-shaped shell blister is examined at the Mumbai laboratory.
“Cyber” Butterfly
Examination of a purple sapphire reveals a zigzag-patterned fingerprint and negative crystal resembling a butterfly.
Hairlike Inclusions in Benitoite
Whitish hairlike inclusions are present throughout a 3.55 ct benitoite.
Iridescent Healed Fissures in Epidote
Illumination under the microscope reveals iridescent healed fissures in a yellowish brown epidote.
Parasite Channels in a Saltwater Natural Pearl
A Y-shaped channel with finer branches indicates parasitic activity in a natural saltwater pearl.
Radial Limonite in Sapphire
Radial limonite displays bright interference colors in a surface-reaching fracture of a violet sapphire.
