Any idea what this is, style and date

[Jason Crozier]

Found in northern Manitoba. Only one I have ever seen found in the area

 

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[arrow86]

Hard to tell with just a single pic .... any chance of getting a few more ? Some close ups of the base especially

 

[Jason Crozier]

I can add more photos in about a week when I return home

 

[ToddsPoint]

That is unreal. That looks like an igneous rock, not flint. Igneous rocks do break with a conchoidal fracture but knapping igneous rock is impossible...or so I thought. Definitely need more pics of that one. As to style, it looks like an obese Agate Basin. A mystery to me so far. Gary

 

[Arrow1492]

definetely need to see sides. Any flaking patterns? Only so much can be told from a single 2d pic.

 

[Jason Crozier]

It’s definitely granite of some sort, I’ll post more pictures soon
Thanks for all the replies so far

 

[choo]

That point is not made of granite! It looks like some kind of local chert!

 

[Arrow1492]

No way granite. If it was, it’s not a point. We need better pics. Then a better decision will be rendered.

 

[PullTabSlayer]

I also have a couple of points that are of a similar material as this one, I assumed they were granite. I found them in Wayne county MO or St. Francis county, don't remember any more

 

[Charl]

Visually, it does look like some granites. But, as others have mentioned, granite cannot be knapped, it cannot be granite. But it could be an igneous rock. Rhyolite, for example, is an extrusive volcanic igneous rock. Extrusive implies that it cools and crystallizes above the surface of the Earth. An intrusive igneous, like granite, cools and crystallizes inside the Earth. I'm not saying it's rhyolite, just a possibility. Maybe it's a chert. We can just safely say it's not granite. It also shows that the tip was resharpened. Whatever the type, it's a nice looking point.

 

[kenstein]

Bump

 

[rock]

Well I usually lay back and let the others guess on these types of things but looks like everyone has already given up on the material. Its a Salt and Pepper Quartzite and if it was heat treated it would of been a different color. Knapping that stuff must of been hard like making a point from a unheated quartz rock.

 

[rock]

Agate Basin looks correct

 

[sawmill man]

I do have one that resembles that material .always thought it was Rhyolite.

 

[sawmill man]

sorry trying to get a hang of the pic thing.

 

[Jason Crozier]

It sure does look like a very similar material to your point sawmill man. I guess granite was the wrong term to use, granite like in appearance is what I should have said.
Thanks all and as promised more pics to follow soon

 

[IAMZIM]

Visually, it does look like some granites. But, as others have mentioned, granite cannot be knapped, it cannot be granite. But it could be an igneous rock. Rhyolite, for example, is an extrusive volcanic igneous rock. Extrusive implies that it cools and crystallizes above the surface of the Earth. An intrusive igneous, like granite, cools and crystallizes inside the Earth. I'm not saying it's rhyolite, just a possibility. Maybe it's a chert. We can just safely say it's not granite. It also shows that the tip was resharpened. Whatever the type, it's a nice looking point.

Thanks for the info, I found this interesting, because many of the points I have are made of jasper or "chert" that originates from a particular area here where there are pits where the material was "quarried" out for thousands of years. The host rock for this jasper (chert) is rhyolite. It is interesting to me how these types of rock are associated, and make sense to me that rhyolites can be knapped like flint or jasper (chert). One of these days when I get time I'll post some pics of these "pits"......

 

[redbeardrelics]

That is a real nice point, and nice material!
I would agree that it is a cool and unusual local chert, or an exceptional form of quartzite as already suggested. Around here we have some points made of orthoquartzite which look rather similar. On the Delmarva orthoquartzite points a rather collectable because it is thought that the source of the material was submerged under the expanding Chesapeake Bay somewhere around the mid archaic timeframe, making the material unavailable to later peoples.

 

[unclemac]

boy that looks like granite! nice close ups of the edge work please! are they ground? and close ups of the matrix too!

 

[ToddsPoint]

I sent that pic to a geologist friend who is also a knapper. He said there is no source of cryptocrystalline quartz (flint/chert) in Manitoba and he said the point is fine grained granite. I'm kind of skeptical of that and would sure like to hold that point in my hand. Gary