Other
The image.com: Gem Gallery
Learn all about gemstones at this site. Here you can view gem images and read the very detailed descriptions and general information facts pertaining to select gems.
Other
The image.com: Minerals
This is a very large list of minerals complete with image and physical descriptions, chemical descriptions, and classification.
San Diego Natural History Museum
San Diego Natural History Museum: Mineral Matters: Frequently Asked Questions
Frequently asked rock and mineral questions are answered and illustrated.
Jewelry Central
Jewelry Central: Emerald
A commercial site giving information on the physical properties and history of emeralds. Includes details on the cuts and valuation of these gems.
Chemicool
Chemicool: Beryllium
A very thorough and well organized site from Chemicool describing lots of useful and relevant information on beryllium. Should be very valuable to students at many levels.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Aquamarine, the Blue Variety of Beryl
This site has some background information on aquamarine, a blue form of beryl. Provides details about variety, uses, color, and more. Detailed and helpful information.
Other
Icga: Aquamarine, Gem of the Sea
A brief description of the physical properties of the aquamarine gemstone, along with a perspective on its history and metaphysical properties.
Wikimedia
Wikipedia: Aquamarine and Maxixe
Article on the mineral beryl with a section on aquamarine, which is a variety of beryl.
Curated OER
The image.com: Minerals
This is a very large list of minerals complete with image and physical descriptions, chemical descriptions, and classification.