Washington Obsidian Source - Obsidian Outcrops
In “Washington Obsidian Source” at
http://lists.drizzle.com/pipermail/rockhounds/2012-June/037936.html
Sonja Kassa wrote,
“Still, I am an amateur, and would like advice/knowledge
about obsidian outcrops and how they occur or if anyone
has run into a similar situation and has advice! I would love
to hear it!”
Go look at:
1. the “U. S. and Canada Obsidian Source Catalog” at
http://www.sourcecatalog.com/
2. the “World Obsidian Source Catalog” at
http://www.obsidianlab.com/sourcecatalog/s_home.html
and 3. “Northwest Research Obsidian Studies Laboratory
Map Library “at
http://www.obsidianlab.com/image_maps/image_maps.html
Best wishes,
Paul H.
