MVAC logo

at the University of Wisconsin-La Crosse

Mississippi Valley Archaeology Center / Educators

Archaeology Terms

Back to all terms

Obsidian

Obsidian Sometimes referred to as volcanic glass, this is a form of stone that has no internal blocky or crystalline structure. Consequently, it can be made to have an exceptionally sharp edge, though it is typically brittle.

MVAC wordmark logo

at the University of Wisconsin-La Crosse

Contact us

Get involved

Back to top

MVAC Educational Programs are supported in part by the National Endowment for the Humanities. Any views, findings, conclusions or recommendations expressed in these programs do not necessarily represent those of the National Endowment for the Humanities. This project was supported in part by the National Science Foundation. Opinions expressed are those of the authors and not necessarily those of the Foundation.