An article on a commercial site describing the physical characteristics of this gemstone, along with its historical and metaphysical properties.

Online exhibition site includes video demonstration of gem-carving techniques, side-by-side comparison of intaglios and cameos, and examples of gemstones carved by ancient Greeks, some of which have been set into jewelry.

Article on the mineral beryl with a section on aquamarine, which is a variety of beryl.

A commercial site with a short description of the physical properties of topaz, and pictures of cut and polished stones for sale.

This commercial site gives information about garnet, including some of the varieties and where they are found. It also has pictures.

Site provides many fun facts about the gem peridot, including information on its history and physical and metaphysical properties. Also provides a picture of the gem itself.

This site will identify your birthstone based on a particular birth date and provide information on that gem. More information can be learned about that gem, and others, in their Gem Library.

This site gives information on onyx's history, mystical background, and physical appearance. Also includes further information and pictures of the gem itself.