Article Search Results

Show Filters
Showing 21 results for "*"

Types

Articles (21)

Content Type

Gem News International (2) Abstract (4)

Reviewed

Peer Reviewed (14)

Topics

See All Topics

Topics

Identification (21)
Gemmology (11)
Localities (11)
Chemical Composition (10)
Colour (9)
History (9)
Physical properties (8)
Geology (7)
Mining (7)
Optical Properties (7)
Mineralogy (6)
Inclusions (5)
Techniques (5)
Formation (4)
Jewellery (4)
Manufacturing (4)
Material properties (4)
Crystal structure (3)
Fashion (3)
Instrumentation (3)
Optical effects (3)
Precious Metals (3)
Synthesis Process (3)
Synthetics (3)
Trade (3)
Treatment process (3)
Design (2)
Education (2)
Imitations (2)
Metals (2)
Technology (2)
Tools (2)
Enhancement (1)
Grading (1)
Organics (1)
Pricing (1)

Gemstones

See All Gemstones

Gemstones

Garnet (21)
Ruby (6)
Sapphire (6)
Tourmaline (5)
Diamond (4)
Emerald (4)
Spinel (4)
Amethyst (3)
Opal (3)
Zircon (3)
Amber (2)
Aquamarine (2)
Jade (2)
Pearl (2)
Tanzanite (2)
Diamond - Fancy ColoUr (1)
Kunzite (1)
Lapis Lazuli (1)
Morganite (1)
Topaz (1)
XClear Selections
Timeline showing the use of garnets in different eras from 300 BCE to 700 CE
An Early Byzantine Engraved Almandine from the Garibpet Deposit, Telangana State, India: Evidence for Garnet Trade Along the Ancient Maritime Silk Road

H. Albert Gilg, Karl Schmetzer, and Ulrich Schüssler, August 6, 2018

Analyses the chemical composition and inclusion characteristics of this ancient artefact.

Read More
Purple pyrope-almandine garnets from Manica Province, Mozambique
Purple Pyrope-Almandine Garnet From Mozambique

Supharart Sangsawong, Victoria Raynaud, and Vincent Pardieu, November 7, 2016

Analysis of attractive purple garnets from a new deposit in central Mozambique.

Read More
Article
Pyrope Garnet and Montana Sapphires Highlight Winter 2015 G&G

Russell Shor, February 1, 2016

G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.

Read More
Demantoid garnet fossil pseudomorphs

Emmanuel Fritsch, Julien Raoul, Benjamin Rondeau, and Olivier Segura, January 31, 2014

In these two extremely rare specimens, demantoid garnet has replaced coral and gastropod fossils.

Read More
Article
Gem Mining in Cambodia

Vincent Pardieu, GIA, August 9, 2013

How to examine a sapphire crystal for cracks and inclusions.

Read More
New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar

Karl Schmetzer, Thomas Hainschwang, June 1, 2002

Pyrope-spessartine garnets from Tranoroa, in southern Madagascar, contain appreciable Cr and somewhat lower V contents.

Read More
Garnets from Madagascar with a Colour Change of Blue-Green to Purple

Karl Schmetzer and Heinz-Jürgen Bernhardt, December 1, 1999

Gemmological, chemical, spectroscopic and microscopic properties of blue-green colour-change garnets from a new deposit near Bekily, Madagascar, are given.

Read More
Rounded Garnet Crystals
Bohemian Garnet – Today

Jochen Schlüter and Wolfgang Weitschat, September 1, 1991

Red garnets have been mined in the Bohemian Hills of Czechoslovakia since the 16th century.

Read More
Pastel Pyropes
Pastel Pyropes

Carol M. Stockton, June 1, 1988

Pyrope garnets occur in near-colourless to light orange and pink, as well as the familiar red.

Read More
The Elahera Gem Field in Central Sri Lanka

Mahinda Gunawardene and Mahinda S. Rupasinghe, June 1, 1986

The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.

Read More
Load More

Resources For Retailers
Find a Retailer
learn more
Shop the Campus Store
Visit the campus shop
Learn More
Abstract art with a fluorescent rainbow and dark brown triangle patterns
Subscribe to Knowledge Rocks Emails
Learn More
G&G Winter 2019 Edition
Learn more