Spring 2015 - Volume 51, Issue 1
Issue Overview
Show Filters
Gem inventory at Tucson
Tucson 2015

A summary of the findings at Tucson’s 2015 gem shows.

Read More

Color zoning in amethyst from Boudi, Morocco
Amethyst from Boudi, Morocco

An introduction to Moroccan amethyst, which features distinctive color zoning and inclusions.

Read More

Books: Van Cleef & Arpels: Treasures and Legends

Review of Van Cleef & Arpels: Treasures and Legends, by Vincent Meylan.

Read More

Pastel pyrope
Color-Change Garnets from Tanzania

Striking Tanzanian garnets showing color shifting at the Riverpark Inn (Pueblo) show in Tucson.

Read More

Agate and leaf pendant
Gemstones and Jewelry Inspired By Nature

At AGTA, exquisite jewelry pieces inspired by natural scenes were on view.

Read More

The Second International Diamond School
International Diamond School

A report from the Second International Diamond School, held in Brixen, Italy in January 2015.

Read More

Foldscope
The Foldscope and Its Gemological Applications

The author tests the suitability of a portable paper microscope, called the Foldscope, for gemological application.

Read More

Growth planes and pinpoints
CVD Synthetic Diamond with Unstable Color Centers

Gemological testing reveals color change in CVD synthetic diamond.

Read More

String of beads
Attractive Composite Quartz Beads

Beads are identified as quartz with polymer.

Read More

Scapolite cabochons
Iridescent Scapolite

The Carlsbad lab examines a fascinating rainbow scapolite cabochon.

Read More