A press release from the Oak Ridge National Laboratory reporting that by using secondary ionization mass spectrometry, experimental calibration, and sophisticated modeling methods; is developing a technique to accurately determine when an obsidian tool was crafted.

Provides information on this dating process, the hydration profile, the process and limitations of the technique.

Organization with the goal of providing access to resources that will be of use to the international community of researchers working with obsidian glass. Features articles, news, membership details, bibliography, and links to related sites.