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re: Now Closed: I'll answer any question you have about ROCKS!
Posted on 7/10/14 at 8:02 pm to nuwaydawg
Posted on 7/10/14 at 8:02 pm to nuwaydawg
quote:
Out of curiosity, how was it formed, what other geological traits would be in this area? I've always thought that this area was old. A former mountain range (Appalachian) eroded over time. That soil was also black through plant degradation.
Obsidian forms from a lava rich in silica cools rapidly
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