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Very odd rock or fossil from the hooch

Fernbank Natural History Museum has a bring what you got day where an expert will look at your stuff and tell you what you have. You'll need to call to check the dates.
Incidentally if anyone is interested in a 10,000 year old petrified tree trunk let me know...
 
The answer is slag! Got a response from KSU



Chad

What you likely have a iron slag, or blast furnace slag. How it’s made — A fire is started in the bloomery or a blast furnace. Iron ore is added to the fire (charcoal or whatever is burning). The process continues for hours, with the end products being iron (sometimes referred to as a bloom), and the discarded waste being slag.
Get a magnet - it will verify its iron content.
Now it could be soil that’s had a lightning strike, and it could be from a volcano, but based on its location, glassy look and bubbles evident, it’s most likely man-made rock.

Nancy Hoalst-Pullen, PhD
Professor of Geography
Kennesaw State University
National Geographic Explorer
co-Editor-in-Chief, Applied Geography
SE/Middle Atlantic Regional Councilor, Gamma Theta Upsilon (GTU)
Executive Council, Wine, Beer and Spirits Specialty Group, AAGs
Books You Should Read: National Geographic Atlas of Beer: A Globe Trotting Journey Through the World of Beer
Geography of Beer: Regions, Environment, and Societies
 
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The answer is slag! Got a response from KSU



Chad

What you likely have a iron slag, or blast furnace slag. How it’s made — A fire is started in the bloomery or a blast furnace. Iron ore is added to the fire (charcoal or whatever is burning). The process continues for hours, with the end products being iron (sometimes referred to as a bloom), and the discarded waste being slag.
Get a magnet - it will verify its iron content.
Now it could be soil that’s had a lightning strike, and it could be from a volcano, but based on its location, glassy look and bubbles evident, it’s most likely man-made rock.

Nancy Hoalst-Pullen, PhD
Professor of Geography
Kennesaw State University
National Geographic Explorer
co-Editor-in-Chief, Applied Geography
SE/Middle Atlantic Regional Councilor, Gamma Theta Upsilon (GTU)
Executive Council, Wine, Beer and Spirits Specialty Group, AAGs
Books You Should Read: National Geographic Atlas of Beer: A Globe Trotting Journey Through the World of Beer
Geography of Beer: Regions, Environment, and Societies

You need to go to Pine Log WMA where Stamp Creek crosses the dirt road. There is an old smelting furnace back off the road that looks like an Aztec ruin. Slag material is everywhere around it.
 
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