Can anyone tell me the difference between an Agate Basin and an Angastora? I have the texas monthly field guide but there is nothing I can find about Agate Basins.. Here is what I've been told is an Agate Basin that I found in November east of Austin. It has a nice needle tip and I've been told the base was left that way intentionaly.

There are some significant differences between agate basin, and Angostura. All true agate basins I seen and found have random horizontal flaking, and many to a median ridge. They are more broad and usually more finely worked, and I have never seen one intentionaly made with the fractured base finish. I ncan think of only 3 things intentionally made that way,the fractured base darl,some pandales, and some archaic knives.
Angostura is classically long and narrow, with distinctive beveling on opposing sides. The beveling usually does not extend through the base, and base is straight lined, but noticeably contracting. The bottom of the base can be either straight or concave and ground.There is usually a noticeable shape change at the top of the base on to the tip.
I really think that what you have is an archaic knife, of which might have a fractured base finish. It is a nice find though.

good deal. thanks

Travis
That is nice I'd hate to have that in my chest or back. It may hurt.
Leonard

Ha! Yeah that would def. bring the pain. I can't imagine-I was pretty excited when i found it.

which is this Mr. Mike?

Glenn, NOW THAT.....LOOKS LIKE an AGATE BASIN! Honestly, with a little more damage to the base,...I might have been skunked fo an eden.

Very nice Points, Congrats.