Hello everyone, I found this today when I was looking for artifacts in the mountains near Monte Vista, Colorado. I stumbled across this huge chunk of Chalcedony, it was right next to an old campfire pit. It weighs a 1/2 pound and looks like flakes have been removed. I'm wondering if this is a lithic core.
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lithic core?
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Looks like the inside of a chalcedony geode and their skins are generally thin and the bubbly material doesn't lend itself to knapping but could still be used as a flake knife if it's worked along that top right edge. Or they could have used the parts removed that were knappable. Botryoidal mineral formation. Killer specimen. :woohoo: Our FL agate chalcedony, agatized coral, often has the same botryoidal formations when you break open a large chunk and there is a void inside. Beautiful. That's usually gem quality chalcedony. Cryptocrystalline Quartz!
Silicon Dioxide. I'd pick that up today and they would have, too, LOL.
Professor Shellman
Tampa Bay
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Like to see a piece made from that! :cheer: I found something unususal today, thought is was glass, then petrified wood, fos. bone, and then noticed it is transluscent and possibly none of the above mentioned....i guess?! :unsure: Will post later to see if ya'll can help....nice chunk you found!, Happy huntin'-Kenny
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That is a cool material. We have a lot of that around here too, and there are a ton of geodes near the area we find this stone too. I would go back, and look around for rough looking round cobbles, take them home and break them open. I would advise a lapidary saw instead of breaking it with a hammer, I've done it before and destroyed some beautiful geodes. Here is an example I polished that I found near my home.
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I believe it has to do with volcanic activity? I am not really sure, maybe someone knows more about Geodes? I use a lapidary machine to polish it. It's for cutting and making cabochons. I have a five gallon bucket full of more geodes like this one, but my buddy and I have to buy some new diamond wheels to do some more.
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Mac - I agree with Jack. I wouldn't care if it was an artifact or not, I'd a picked it up and brought it home. Really nice looking material. Tyson - that is rock is off the chain. Now I know why my archaeologist friend wants me to try and find him some larger core/spal type material that is grey to black from our area. He cuts it polishes it. Don't know what he does with it then tho. ---Chuck
Pickett/Fentress County, Tn - Any day on this side of the grass is a good day. -Chuck-
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