The Minerals and
Comprehensive information on rocks, minerals and gemstones. With a minerals
a-z, a glossary and an image gallery.
Guidebook *** (2)
A U.S.G.S. overview of specific gemstones found in the US.
Quality information and educational services to everyone interested in
Gemstones. With reference charts and gem listings.
Gems & Precious Stones
Covers topics central to gemology such as mineralogy and geology with
lectures and images.
Gem & Mineral Collection *** (5)
A selection of images of gemstones with summary descriptions.
Statistics, with loads of info such as commodity summaries and yearbooks
from the U.S.G.S..
The Mineral Gallery ***
Mineral descriptions and images, by name or by class.
Gemology & Lapidary
Loads of invaluable articles on gemstones such as 'tools used by gemologists.'
of Amber *** (9)
Comprehensive treatment of the subject with links.
Frequently asked questions about gemstones.
Gemology ** (11)
Definitions of the physical properties of Gemstones.
Norway, Emerald Mines
Diamond Potential of Finland: Summary