Article Search Results

Types

Articles (6)

Content Type

Abstract (1)

Reviewed

Peer Reviewed (6)

Topics

See All Topics

Gemstones

Emerald (6)

XClear Selections

Emeralds from the Kafubu Area, Zambia

J. C. (Hanco) Zwaan, Antonín V. Seifert, June 1, 2005

Zambia is considered the world’s second most important source of emeralds by value (after Colombia).

Emeralds and Green Beryls of Upper Egypt

Robert H. Jennings, Robert C. Kammerling, June 1, 1993

More than 2,000 years ago, emerald deposits in upper Egypt were supplying gems throughout the Graeco-Roman Empire.

Emeralds from the Ural Mountains, USSR

Karl Schmetzer, Heinz-Jürgen Bernhardt, June 1, 1991

Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic and microscopic characteristics of stones from the recent production are presented and compared with data on older samples as well as those reported in the literature.

Fracture Filling of Emeralds Opticon and Traditional "Oils"

Robert C. Kammerling, John I. Koivula, June 1, 1991

The filling of surface-reaching breaks in emeralds is a relatively common practice, for which various kinds of oils and a natural resin have historically been used.

Abstract Header from the 2009 issue of Gems & Gemology

Abstracts; Summer 2009

Brendan M. Laurs, Thomas W. Overton

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Durability Testing of Filled Emeralds

Mary L. Johnson

Researchers treated 128 emeralds with nine emerald fillers.

Article Search Results

Types

Content Type

Reviewed

Topics

Topics

Gemstones

Find a Retailer

Visit the campus shop

Subscribe to Knowledge Rocks Emails

G&G Spring 2021 Edition