Wildfire damaged this point, I think.
It's only bubbled on one side.
Must have been a hot one though.
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Strange wear and classification question
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Mystery solved, I think.
It's fire damage.
Excerpt from paper named 'Fire Effects on Flaked Stone, Ground Stone, and Other Stone Artifacts'
"Obsidian is thermally affected at varying temperatures and at differing lengths of exposure to heat. In field and lab fire experiments, obsidian has been reported to fracture, crack, craze, potlid, exfoliate, shatter, oxidize, pit, bubble, bloat, melt, become smudged, discolored, covered with residue, or rendered essentially unrecognizable"
Good read.
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Perhaps, they are bubbles that were concealed in the material and then were exposed through wear.
I think they would be disqualifying, if apparent, when the maker was choosing material.
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Originally posted by Kentucky point View PostThat is the darn kookiest piece I've seen. Maybe the marks came from hitting other rocks? Definitely unique.
It almost looks like acid corrosion...
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That is the darn kookiest piece I've seen. Maybe the marks came from hitting other rocks? Definitely unique.
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Definitely obsidian.
Knapped on both faces but heavily water-worn, like south fork says.
At first I thought it was a scraper but now think it's a point.
I've got a lot of water-worn obsidian but have never seen this type of pocking before.
I guess I wondered if anybody else had?
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It's not slag but a water worn piece of obsidian . With a little work on it .
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Strange wear and classification question
I posted this piece as part of a group yesterday.
I'm intrigued by the unusual wear or pocking on one surface.
Also not sure if it's a projectile point or what?
Any thoughts?
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