This category is for information about gemstones and their properties. Gemstones are generally regarded as: Polished fragments of 'precious' and 'semi-precious' minerals, used for decorative purposes. Examples of Precious Stones: Diamonds / Sapphires / Rubies / Emeralds Examples of Semi-Precious Stones: Topaz / Garnet / Spinels. Examples of Other stones used as gems: Jade / Agate / Opal

Subcategories 1

Related categories 4

The Amber Ranch
Dominican rough blue amber for jewellers and collectors.
Bluechart
A gem identification chart.
DocDiamond.com
A team of scientists and diamond experts provide a collection of articles on diamonds.
Florida Gold Coast & Mineral Society
Gold and Mineral Society in Florida.
The Gemhunter
A guide to finding gemstones and gold using geological principles. Many such discoveries have been made by Dan Hausel of Arizona, who set up this site.
Gemology Tools
Software for the professional gemologist or gemology student/enthusiast.
Gems and Gem Materials
An on-line gem and jewelry course at UC Berkeley.
Gemstone Forecaster Newsletters
Analyzes Burma ruby and sapphire gems and collector gemstone markets.
Gemstones and Collector Stones
A collection of images and other information about gemstones, collector stones and the minerals with which they are associated.
GeoNord
Gem and mineral site from Sweden.
The Image
Mineral and gemstone galleries. Physical properties and historical facts for minerals and gemstones.
National Gemstone
Introduction to collecting and investing in gemstones and colored diamonds, with descriptions of the types most widely traded.
NOVA
Gemstone primer with photos and vital information regarding gemstones.
Secrets of the Gem Trade
A new gem book by R. W. Wise.
Smithsonian Gem & Mineral Collection
Pictures and short descriptions of gems and minerals on display at the Smithsonian.
University of Texas Gem Class
Gem and Mineral class at the University of Texas, Austin.
[Mozilla Digging]
Last update:
August 28, 2015 at 18:45:32 UTC
Science
Shopping
Society
Sports
All Languages
Arts
Business
Computers
Games
Health
Home
News
Recreation
Reference
Regional