Worn Unifacial Discoida

Tesorodeoro

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Jan 21, 2018
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Handstone
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I had posted this previously calling it a “mano rind” (my made up terminology for a worn out grinding stone that was discarded once it was no longer useful). The use surface is extremely smooth, almost like a wet stone.

Moderators were kind enough to move it to the Geofact forum (which truthfully was a little insulting). The pictured “geofact” was found adjacent to a NA dwelling, which doesn’t prove anything. In my opinion, it just gives it some context compared to some rock found in a creek or farmers field.

At any rate, I ran across more correct terminology and wanted to share for future reference. “UNIFACIAL DISCOIDAL HANDSTONE”. Can’t shine a light through it, but I still think it’s cool.

Other examples I provided could be referred to as follows;

“Indeterminate Ground Stone. Indeterminate ground stone includes objects made of abrasive material that have at least one ground surface, but the items are too fragmentary to be identified to more specific types.”

Alternatively; “unidentifiable ground stone fragments”.

I’ve read that worn grinding stones were purposely broken or repurposed when they were used up. Perhaps thrown in the fire pit?

At any rate, feel free to move this to where ever you see fit.
I will refrain in the future from reposting refuted finds.
Carry on.
 

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Tesorodeoro

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What’s being talked about in this thread reminds me of a muller. Described in the Massachusetts Archaeological Society artifact handbook: “It is made of a flat-faced cobble of convenient size for hand use, and was used to grind...in shallow stone mortars. Mullers from Late Archaic contexts are definitely associated with nutting activities.” I believe the pecking divot in this muller likely was from bashing nuts before grinding them...

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Tesorodeoro

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Jan 21, 2018
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the flat is defining
a question: how did they get the surface so flat?
not at all easy

not a discoidal shape as it lacks symmetry

I was thinking the same thing...not so many flat surfaces out there to rub against.
I’ve got other stones I’ve picked up that have flat faces, but the stone characteristics don’t fit and there are no wear marks.

I did run across an artifact that kind of fit the description...”pulp plane” or a “cone”
Both have a single very flat worn face.

I’m not sure there will be an answer. I was hoping to accomplish two things:
1.) generate discussion that doesn’t come from flaked tool presentations.
2.) perhaps dismiss the idea that what I showed was a figment of my wild imagination.

I’m also not giving up the idea that the stone could have served several purposes along the way. I could literally sharpen my knife blade on it now.
Such a simple implement gets me thinking how they utilized foraged earthly things to live as comfortable as they could.
 

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