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by James Tanner April 29 2013, 16:09
Obsidian http://t.co/6SfOLgeh6T James Tanner (@Genealogysstar)April 29, 2013
Obsidian http://t.co/6SfOLgeh6T
Obsidian
If you look closely, you will see that the ground is covered with pieces of obsidian, or volcanic glass. This is out in what is called the Western Utah Black Rock Desert. We like to drive the back roads and find rocks and minerals.
http://nblo.gs/KKVBG
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