Gemology involves the study and identification of gemstones. Learn how investors can assess gemstone value and the risks ...

Identifying gemstones is not a trivial task. While properties such as color and transparency can help with identification, gemstones such as rubies, spinels, and garnets can be difficult to ...

It'll be a snap to identify gemstones once Robert Downs finishes his library of spectral fingerprints for all the Earth's minerals. Downs is almost halfway there. So far, the associate professor of ...

It’ll be a snap to identify gemstones once Robert Downs finishes his library of spectral fingerprints for all the Earth’s minerals. Downs is almost halfway there. So far, the associate professor of ...