I was thinking obsidian and did a search. This site came up:
https://volcanoes.usgs.gov/volcanoes/lo ... ge_19.html
Had a good time just looking around other states listed on the pull down.
A fun site for volcanic stuff
- rlown
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- The Other Tom
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Re: A fun site for volcanic stuff
Thanks. Nice way to spend a rainy Sat. aft.
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