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Saskrock fully equipped rock polisher Member since October 2007 Posts: 1,852	Arrow head Apr 20, 2010 12:46:53 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Saskrock on Apr 20, 2010 12:46:53 GMT -5 Made this one last night out of some rock I found in Medora SD ND. It was in with the red shale used on roads. Probably 5-6 mohs. Knapps really nice uncooked. Any idea what kind of rock it is?
	Last Edit: Apr 21, 2010 22:28:17 GMT -5 by Saskrock Scott

Haleysdream has rocks in the head K-9 unit Rock Hounds Member since January 2010 Posts: 654	Arrow head Apr 20, 2010 19:40:48 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Haleysdream on Apr 20, 2010 19:40:48 GMT -5 Don't know the rock but, NICE arrow head. Nancy
	Haleysdream www.etsy.com/shop/Northstarvisions www.casadelshihtzu.com

muleshoejoe
off to a rocking start

Member since July 2008
Posts: 16

Arrow head Apr 20, 2010 21:05:18 GMT -5

Quote

Post by muleshoejoe on Apr 20, 2010 21:05:18 GMT -5

Nice work! I would say that rock is a piece of porcellanite. Basically melted or fused chert. Very prominent in the coal country here in eastern Montana, Wyoming and I gues SoDak. LOL. They say one way it was formed, was when the coal seams caught on fire and melted the surrounding clays and whatnot , forming porcellanite. I cut slabs of it for my knapping buddies and they love it for the way it works. The early indians made alot of their heads from that stuff. It is used on county roads alot and it is called scoria by everyone. It will also give ya some flat tires too. I can attest to that!

Woodyrock driving up their electric bill Smile! Member since January 2008 Posts: 2,719	Arrow head Apr 20, 2010 23:46:11 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Woodyrock on Apr 20, 2010 23:46:11 GMT -5 Nice point, it does look like it worked up pretty nice, your knapping certainly is good. Woody

Fossilman Cave Dweller Member since January 2009 Posts: 20,722	Arrow head Apr 21, 2010 12:51:07 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Fossilman on Apr 21, 2010 12:51:07 GMT -5 Its chert and(or) scoria.You mean Medora,ND don't you...................Beautiful place in southwestern North Dakota. Like the work you did too,congrads. Always liked your work on arrowheads Scott.
	Last Edit: Apr 21, 2010 12:57:14 GMT -5 by Fossilman God,family and life.....

NDK Cave Dweller Member since January 2009 Posts: 9,440	Arrow head Apr 21, 2010 19:05:53 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by NDK on Apr 21, 2010 19:05:53 GMT -5 Nice point Scott. I was gonna say the rock looks like clay. Guess I was kinda right lol. Nate
	-Nate

rockrookie still telling self it's just a hobby Member since March 2008 Posts: 4,962	Arrow head Apr 21, 2010 19:34:07 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rockrookie on Apr 21, 2010 19:34:07 GMT -5 nice arrow head !! --paul
	--paul

Saskrock fully equipped rock polisher Member since October 2007 Posts: 1,852	Arrow head Apr 21, 2010 22:29:25 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Saskrock on Apr 21, 2010 22:29:25 GMT -5 Woops my bad. Yes ND not SD. Thanks everyone.
	Scott

MikeS
fully equipped rock polisher

Member since January 2009
Posts: 1,081

Arrow head Apr 28, 2010 23:21:54 GMT -5

Quote

Post by MikeS on Apr 28, 2010 23:21:54 GMT -5

that's some excellent work there...looks like the real thing!

I'm with muleshoejoe, the material is probably porcellanite...I have a ton of that stuff as landscaping rock in my yard, it looks just like that. Incidently, porcellanite was a fairly common material used by ancient people to make tools...

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Post by Saskrock on Apr 20, 2010 12:46:53 GMT -5

Post by Haleysdream on Apr 20, 2010 19:40:48 GMT -5

Post by muleshoejoe on Apr 20, 2010 21:05:18 GMT -5

Post by Woodyrock on Apr 20, 2010 23:46:11 GMT -5

Post by Fossilman on Apr 21, 2010 12:51:07 GMT -5

Post by NDK on Apr 21, 2010 19:05:53 GMT -5

Post by rockrookie on Apr 21, 2010 19:34:07 GMT -5

Post by Saskrock on Apr 21, 2010 22:29:25 GMT -5

Post by MikeS on Apr 28, 2010 23:21:54 GMT -5

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